Databack - Récupération de données
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Ransomware data recovery

Faced with ever-increasing cybercrime and indiscriminate, complex ransomware attacks, Databack offers remedial solutions to organisations (businesses, government agencies, local authorities, etc.) that fall victim to such attacks. While continuing to raise user awareness of best practices in digital security, our laboratory offers restoration and recovery of your encrypted data following a cyberattack.

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Are you a victim of ransomware?

Databack and data recovery after a cyber attack

Ransomware indiscriminately targets all types of organization, whatever their status, size or sector of activity: SME/SMI, ETI or large corporations, local authorities, administrations, healthcare establishments…

Also known as crypto-lockers, cryptoviruses or crypto-locking viruses, ransomware infects your storage media and encrypts your computer data, rendering it unreadable. The hackers behind their distribution will then seek to extort a ransom from their victim, usually in virtual currency, in exchange for a hypothetical decryption key.

The encryption of your data by ransomware will have a direct impact on your organization’s activity. This can range from downtime to outright interruption of production. The consequences of a ransomware attack will also affect your organization’s reputation, undermine the trust of your customers or users, and engage your legal liability in the event of a leak of personal or sensitive data.

Ransomware cyberattacks leave targeted organizations with few options. The first reflex is to pay the ransom… but this obvious option is in fact dangerous and inadvisable: it offers no guarantee of obtaining the decryption key and, on the contrary, encourages hackers to increase their demands and repeat their attacks…

Faced with the development of cybercrime, digital security players are offering prevention campaigns, information systems security, curative solutions… In conjunction with the launch of your BCP or DRP, the use of a specialized laboratory will enable you to optimize your chances of recovering your data after a cyberattack. Backed by the expertise of its engineers and equipped with a secure laboratory, Databack has developed emergency processes dedicated to the recovery of encrypted data.

Databack, hacking de données dans toutes la France

Data recovery process
after a ransomware attack

Ransomware is a class of malware designed to hold a target’s computer data hostage. Databack’s fast, simple and secure process will enable you to recover your data for rapid recovery or business continuity.

Process

Step 1 - Emergency response and qualification

Cyber attacks can cause extremely serious crisis situations when they affect sensitive data, health data, personal data… Databack has set up a service dedicated to the recovery of critical data.

Databack’s emergency team is :

  • a dedicated 24/7 toll-free telephone number.
  • an on-call team that can be mobilized in less than two hours.
  • contact with an engineer, depending on the criticality of the incident.
  • fast, precise and interactive demand qualification.
  • rapid return of the proposal according to the solutions defined.

Stage 2 - Care and diagnosis

Databack’s expertise and cyber-monitoring capabilities enable us to handle all ransomware attacks. The diagnostic phase enables us to validate the restoration of data in your organization’s new IS.

Databack specializes in :

  • knowledge of file systems and backup formats ;
  • restoration of data inaccessible following encryption ;
  • formatting them for optimized reintegration at the customer’s premises.

Step 3 - Data analysis and recovery after a cyber attack

After analyzing the contents, Databack ensures data recovery from all types of storage architecture and media: network-attached storage (NAS) servers, storage area networks (SAN), RAID systems, hard and SSD disks, USB sticks, and more.

  • data restoration after ransomware encryption.
  • recovery and migration to new storage media.
  • secure deletion of corrupted old storage media.
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FAQ

DO YOU HAVE ANY QUESTIONS?

Databack meets all your data recovery needs following a ransomware attack.

When a cyber attack occurs, it's essential to know how to react to protect your business. A rapid, structured response can limit the damage and ensure business continuity. The first step is to understand the nature of the threat and take immediate action to contain the attack.

Detecting cyber attacks within your organization

The first step in knowing what to do in the event of a cyber attack on your company is to detect it correctly. Common signs include unusual system behavior, unauthorized file modifications or ransomware. Typical symptoms can also be unexplained slowdowns, unusual error messages or unauthorized access.

We recommend using network monitoring software, up-to-date antivirus software and intrusion detection systems (IDS) to effectively detect cyber attacks. Regular, proactive monitoring can help identify threats before they cause significant damage. Companies also need to train their employees to recognize the signs of a cyber attack, and to report any suspicious activity immediately.

Immediate steps to take in the event of a cyber attack at your company

Once identified, here's what to do immediately in the event of a cyber attack:

1. Isolate infected systems

The first action to take is to disconnect compromised systems from the network. This prevents the attacker from accessing other parts of your infrastructure and limits the damage. By isolating systems, you prevent the attack spreading to other devices and networks. This isolation must be carried out quickly to minimize the impact. Infected computers and servers must be disconnected from internal and external networks, including the Internet. It may be necessary to use backup devices to maintain critical operations during this isolation period.

2. Disable network access

After isolating infected systems, block non-essential connections to limit attacker access. This reduces the ability of cybercriminals to manipulate your systems remotely. It's important to restrict administrative access and monitor suspicious connections. Close unused ports and apply strict security policies to remaining accesses. In addition, it may be necessary to change passwords and revoke compromised user access to prevent further intrusion attempts.

3. Notify IT security teams

Notify your IT team immediately so they can take the necessary action. A rapid, coordinated response is essential to minimize the impact of the attack. Security teams need to be ready to respond 24/7, and it's important to have a clear, well-communicated plan of action. Early notification helps mobilize the necessary resources and coordinate efforts to contain and resolve the incident. What's more, it can be useful to have an external team of cybersecurity specialists on hand to help when needed. Document all steps and actions taken to ensure effective post-incident follow-up and analysis.

These initial actions are essential to contain the cyberattack and prevent its spread. In the event of a cyber attack in your company, it is also advisable to have a well-defined and regularly tested response plan to ensure a rapid and effective response.

Data recovery following the cyber attack

To limit the impact and return to a normal situation, here's what to do in the event of a cyber attack to recover your data:

First of all, we strongly advise against paying the ransom demanded by cybercriminals. Paying does not guarantee data recovery and encourages criminals to continue their activities. Instead, use secure backups to restore lost or damaged data. Make sure your backups are free from compromise before restoring them. After restoration, check that all systems are intact and operational.

If you're having trouble recovering your data, it may be a good idea to call in data recovery experts like Databack. Our laboratory uses advanced techniques to restore data without encouraging cybercriminals. Calling in the specialists not only means you can recover your data securely, but also benefit from advice on how to strengthen the security of your IT infrastructure.

Finally, don't forget to document the incident and recovery measures to improve incident response procedures and plans.

The importance of good communication...

Internal and external communication is essential throughout the crisis management process. Inform managers, employees and security teams about the attack and the measures taken. In addition, it's important to communicate with your customers, partners and, if necessary, the relevant authorities about the incident. Transparent and prompt communication helps maintain stakeholder confidence and manage expectations.

It is advisable to prepare communication templates for different cyber-attack scenarios in advance, to speed up the process in the event of an incident. Communication management should include regular updates on how the situation is progressing and what steps are being taken to resolve the problem.

In conclusion, effective communication is essential to managing a cyber attack in your company. It enables you to coordinate internal efforts, maintain the confidence of customers and partners, and comply with legal and regulatory obligations. Transparency and responsiveness are the keys to successful communication during a cyber crisis.

Ransomware attacks lock down your computer or network and encrypt your data. A ransom is then demanded in exchange for the decryption key and the recovery of your data. Whether you're a company, a local authority, a healthcare institution, a private individual... how do you react when you fall victim to a ransomware attack?

What to do in the event of a ransomware attack?

When you detect a ransomware attack in your company it's probably already too late, whether you've received the ransom note or not. But there are a few things you can do to prevent the situation from getting any worse.

1. Isolate the infected device from the Internet and your computer network.

To prevent the virus or malware from spreading, disconnect your computer by unplugging its Ethernet cable, cutting Wi-Fi access or disconnecting it from your servers.

2. Gather evidence to identify the ransomware.

Screenshots, copies of ransomware messages, system logs, encrypted files... Any trace of the attack will enable us to identify the ransomware and implement the appropriate solutions.

3. Remove the ransomware and decrypt the infected data.

Free decryption tools are available on sites such as Kaspersky's No Ransom or Europol'sNo More Ransom. Failing that, contact a data recovery laboratory.

4. Never pay the ransom!

Even if the sum may seem "reasonable" in view of the sensitivity of your data and your business, never pay the ransom! After all, there's no guarantee that your data will be decrypted or that you'll be protected from further attacks - quite the contrary.

How can you protect yourself against ransomware attacks?

When it comes to digital security, preventive measures can help reduce the risk ofransomware attacks and, more broadly, guard against cybercrime.

1. Save your data.

Backup solutions adapted to your structure(cloud computing, NAS servers, RAID systems...) will enable you to re-establish your business or restore your data. Be careful, however, not to back up data corrupted by ransomware, in the event of an undetected attack...

2. Regularly update your OS, applications and software.

Regularly updating your operating systems (OS), applications, software (especially firewall and anti-virus), plug-ins and browsers will help you react to new developments in ransomware and protect you against the most widespread.

3. Avoid "risky" IT and digital practices.

To reduce the risk of intrusion, or of leaving doors open to malware, behave cautiously:

  • do not open e-mails or attachments from unknown senders, or from known senders whose message seems suspicious;
  • do not install software, applications or media (music, videos, images, etc.) that are pirated or of dubious origin;
  • avoid sites with suspicious, illicit or unsafe content (streaming or download sites, adult sites, etc.).

Decrypting ransomware, i.e. deciphering data locked by ransomware, represents a vital challenge for the organizations affected, be they companies, public authorities or local authorities. Although ransomware attacks are a constantly evolving form of cybercrime, your organization can protect itself and respond to them.

1- Protect yourself and anticipate ransomware attacks

Good digital security practices will enable you to manage, or at best anticipate, crises caused by the encryption of your data:

  • regularly back up your data using cloud computing or independent storage media (NAS servers, RAID systems, etc.);
  • regularly update your operating systems, software (especially antivirus software), web browsers and plug-ins;
  • avoid risky behavior: opening e-mails or attachments of dubious origin, visiting uncertified or high-risk websites, etc.

2- The right reflexes in the event of a ransomware attack

The success of subsequent ransomware decryption / ransomware decryption operations will depend on your first reflexes:

  • Isolate the computer or system infected by the attack: cut off Internet access, disconnect from the network, quarantine ;
  • take a screenshot of the ransom message, which may contain information about the ransomware version;
  • don't pay the ransom! This will not guarantee the recovery of your data, and will encourage further ransomware attacks.

3- Decrypt files encrypted by a ransomware virus

Decrypting files encrypted by ransomware or ransomware requires identifying the ransomware or ransomware in order to implement the appropriate procedures:

  • try to trace the source of the attack: fraudulent e-mail or infected attachment, website hacked by web exploit or malvertising, etc. ;
  • collect any clues that may help identify the ransomware: screenshots(see above), behavior, extension of encrypted files, etc. ;
  • identifiez le ransomware et mettez en œuvre les procédures connues lorsqu’elles existent ; vous disposez pour cela de plusieurs ressources :
    • identification and decryption sites such as that of cybersecurity company Kaspersky orEuropol;
    • a laboratory specialized in data recovery, such as Databack.
All FAQs
18/09/2025
I used DataBack's services after a cryptolocker attack. We sent them half of our infrastructure via a specialized carrier. As soon as the equipment arrived at 4 a.m., they immediately set to work on our problem.They were fast, efficient and made it possible to recover our essential data. Thanks to their support, expertise and quality of work, we were able to save our business. I highly recommend their services.
05/06/2025
We are entirely satisfied with the service we received. The DATABACK team was available, responsive and attentive to our needs throughout the entire process. DATABACK supported us with clarity and professionalism, reassuring us every step of the way. Thanks to their technical expertise, almost all our data, despite being stored in encrypted backup sets, was successfully recovered. We would like to pay tribute to the quality of the service and the competence of the people involved, who were able to meet our expectations in a particularly stressful context. Thank you for your help.
22/01/2025
Following a Ransomware cyberattack that went so far as to reassemble and purge the backups of several of our customers (despite a 14-day retention period), the DATABACK team clearly helped save the business of several of them. They were able to exploit most of the data encrypted by the attacker. By cross-referencing them with other data saved on other media, we were able to reconstruct almost all the encrypted data. The responsiveness, technical skills and professionalism of the entire DATABACK team have been proven beyond doubt. Bravo again and thank you.
29/11/2024
DATABACK supported us in the decryption of several strategic disks, being reactive, punctual and proactive. The process was mastered, from the provision of the disks to the diagnosis and return of the decrypted data.
21/11/2024
Following a cyber-attack which resulted in the encryption of our data, our insurer's consultants immediately put us in touch with Databack for the treatment of our servers. On the very day the incident was discovered, the Databack team intervened to recover our servers and make secure copies of them. The aim of this approach was to get our equipment back to us quickly, as acquiring new servers would have required a timeframe incompatible with our needs. While Databack decrypted the copies and kept us regularly informed of the status of recoverable data, we undertook a complete reset of our returned servers. We then reinstalled the Windows environments and all our software on the system partitions ("C:"). Once this stage was complete, all we had to do was copy the user data ("D:"), which Databack supplied to us on a secure external hard disk, less than seven days after recovering our servers. Thanks to Databack's efficiency and professionalism, we were able to overcome this major crisis in record time.
20/11/2024
Our association was the victim of a ransomware-type cyber attack that paralyzed our information system and erased all our backups. DATABACK was contacted and confirmed the possibility of data recovery. The material was sent and after validation of the recoverable data, extraction and return were carried out very quickly. I recommend DATABACK for their responsiveness and professionalism.
25/10/2024
We would like to thank the Databack teams for their rapid and efficient response to the cyber-attack we suffered. Thanks to your expertise, we were able to recover all our documents and AD databases, which was crucial for the continuity of our business. We were fully satisfied with the quality of your support, both technically and in terms of the human relationship established throughout this mission.
17/10/2024
DATABACK met our need for responsiveness, agility and professionalism at a time when we needed it, namely during a crisis linked to a ransomware cyberattack. They were always ready to listen to our specific requests, and to propose appropriate technical solutions.
14/10/2024
I would like to highly recommend DATABACK for their professionalism and outstanding data recovery expertise. They successfully recovered critical data from encrypted disks, which was a real lifesaver for our subsidiary. Their service was extremely professional, efficient and very satisfactory. I sincerely thank them for their exemplary work and invaluable support.
05/06/2024
Our company has been in business for 30 years, and this is the first time we've had such a critical case where we've had to call in a company we didn't know (from our services) to entrust them with a customer's data without having the benefit of hindsight, so it was a very stressful situation.
I'd like to thank you for the confidence you showed us, your responsiveness and your professionalism. The work carried out by your services was exceptional, and the fact that we didn't lose any data was a real blessing for us, our customer and the franchise with which he is associated. I'll keep your contact details in a safe place even though I hope I won't need your services for at least the next 30 years for such a critical case, but I'll be sure to recommend you if the opportunity arises.
Many thanks again from the entire CGInformatique team.
04/03/2024
A Group subsidiary was the victim of a cyber attack at the beginning of 2024. Its entire production environment was affected and corrupted. Following DATABACK's rapid diagnosis, we decided to accelerate the company's switchover to the Group's IS. DATABACK enabled us to recover the most important data to ensure business continuity.
14/02/2024
We were the victim of a ransomware-type cyber-attack in January 2024. This attack totally destroyed all our various backup media and encrypted all our servers. On the advice of our insurance company and our usual service provider, we called in DATABACK. We were rather defeatist about recovering our data, but DATABACK worked miracles. In just 2-3 weeks we were able to recover almost all our data. A big thank you to all the teams for their responsiveness, professionalism and availability!!!!
28/09/2023
I'd like to thank you and your teams, who successfully helped us get through an unprecedented period of IT paralysis. Your skills, expertise, attentiveness and efficient collaboration deserve to be commended ... Your talents have enabled us to get back to the heart of our business! The recovery of our encrypted data by DATABACK has played an active part in restoring our patients' day-to-day working life.
07/09/2023
Following a cyber attack, we lost all our data. We called in DATABACK, who were able to recover almost all our data in a very short time. Many thanks to the DATABACK team: efficient, fast, straightforward and extremely qualified.
19/07/2023
We had the unpleasant surprise of suffering a cyber attack at the beginning of the summer. Following our declaration to the ANSSI, DATABACK was recommended to us by a cyber specialist. We have no regrets about this choice. We were accompanied by these specialists and monitored throughout the process (in parallel with forensic research by another company). 2 encrypted servers, but above all a backup NAS, were analyzed and DATABACK was able to recover almost all our files at a recent date in relation to the attack. We can therefore testify to our satisfaction with this operation carried out with DATABACK.
30/05/2023
We were hacked and lost all our data. I sent our backup hard disk, which had also been cryptolocked, to Databack, but without much hope. Databack was very professional and responsive. And above all, they managed to recover all our data! The price is very reasonable for the service provided! I recommend them with my eyes closed, they're a serious company you can trust.
23/12/2022
We called on DATABACK following a cyber-attack which severely handicapped our business, with the loss of a large part of our data. DATABACK showed great responsiveness by recovering our servers and copying the data from them to their premises. They then managed to decrypt our data and we were able to resume our business very quickly. Many thanks to DATABACK for their responsiveness and professionalism.
22/12/2022
Following a cyber-attack, we called in DATABACK to recover data that had been erased (40 servers). 99% of our data was recovered, enabling us to quickly restart our services and limit the impact on users. All our contacts were available, attentive and very responsive. We recommend DATABACK.
15/12/2022
Our group suffered a ransomware-type cyber attack at the end of 2022 that paralyzed our information systems and erased our backups on 2 centers. Our regular service provider recommended that we contact DATABACK immediately to check the possibility of data recovery. The material was sent the next day, with encouraging information from the DATABACK teams. Once the recoverable data had been validated, extraction and return went very quickly. Thanks to you, we were able to start rebuilding the IS and restore priority data. I recommend DATABACK for their excellent professionalism.
01/04/2022
Following a major cyber attack, the CIG de la grande couronne needed to recover part of its data from encrypted Veeam Backup backups. After an initial failure with a service provider, a second attempt was made with Databack. The DATABACK teams were available, professional and efficient. We recommend them to all the local authorities we work with.
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DISCOVER DATABACK
Databack, expert in ransomware incident response

As a French laboratory specialising in the processing of sensitive and voluminous data, Databack is renowned for its expertise in responding to incidents involving ransomware. Our laboratory restores data encrypted by ransomware, malicious software that takes hostage the information systems of organisations of all kinds (businesses, hospitals, government departments, etc.).
Through our team of engineers and technicians, Databack also provides you with the following expertise and know-how:

  • data recovery : Equipped with the appropriate infrastructure (clean room, laminar flow hoods...), our laboratory offers companies and public organizations data recovery on all types of storage media (HDD, SSD, RAID systems, NAS, SAN...), after any type of disaster or breakdown.
  • data migration on magnetic tapes : Magnetic tapes have been used as mass storage media since the early days of computing, but they have not fallen into disuse. Databack offers you data backup and migration on these reputedly reliable storage media.
  • secure data erasure : recovery and restoration operations after a breakdown or disaster demonstrate the persistence of computer data. Our laboratory therefore offers secure and definitive data erasure services, particularly when you are renewing your IT equipment, converting or closing down your business, etc.
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