
Data Recovery After a Ransomware Attack
Is your business at a standstill, your files encrypted, your backups destroyed or wiped?
Everything may seem lost: not to us!
Our data recovery engineers put their expertise to work against ransomware cyberattacks.
You need to keep hope — ransomware groups often don’t have time to encrypt everything, and they make mistakes. Our experts can recover your lost data after assessing the situation.
In 2023, we had 13 consecutive successes against 9 different ransomware groups. If you have backups and encrypted virtual machines, our success is guaranteed.
What to do in the event of a ransomware attack?
You need to act quickly and methodically, as follows!
- Audit the infected systems and isolate them
- Take stock of your usable backups and check whether they are accessible or encrypted
- Contact Chronodisk as soon as possible so we can assess the situation and point you towards the best solution. Our engineers can travel on-site to clone your media and arrange for it to be brought back to our laboratory, anywhere in the world. This lets us define the best data recovery strategy, including for data deleted by the attackers.

What happens during data recovery after a ransomware attack?
1
Emergency unit, 24/7/365
- Contact our emergency experts on +33 6 31 84 07 99 (24/7) or +33 1 40 60 00 00 (9am–6pm).
- Our on-call team responds as quickly as possible (within 2 hours).
- Questionnaire on the technologies used and priority files
2
Reception, cloning and diagnosis
- Immediate cloning of the drives via a secure process
- Pre-diagnosis and prioritisation
3
Data recovery
- Extraction of files onto a NAS server
- List of recovered files
- Client validation
- Shipping of the recovered data
Our technical capabilities
Our engineers are able to work on:
All operating
systems

All backup
systems

All types of
virtual machines

What does successful ransomware data recovery look like?
Our pricing
Volume
Volume of data to process (storage media capacity, number of files…)
Technology
File system, operating system, virtualisation system, backup software…
Timeframe
Two service levels (on-call or emergency)
Our emergency unit
When we receive your request, it is handled immediately by our emergency unit.
We respond just as readily during the day, at night, on weekends or on public holidays. Our on-call setup lets you recover your data three times faster than through a standard callout.
Our team is made up of an account engineer, your single point of contact, and engineers specialised in ransomware data recovery.
We scale our team according to the scope of the cyberattack and the urgency of the situation.
Work can take place on-site or remotely in certain cases.
Our latest successes following a ransomware attack
AlphV
Accounting firm
12 people
Encrypted VMs
Microsoft VHDX
Synology NAS
4 drives
Play
Chemicals
87 people
Encrypted backups
Veeam
Lenovo server
12 drives
Lockbit 3
Manufacturing
450 people
Wiped virtual machines
VMWare
2 HP & Dell servers
48 drives
Should you pay the ransom?
Even if the attackers let you contact them and negotiate, paying the ransom does not guarantee you’ll get your data back, and it risks exposing you to a fresh ransomware attack.
All of this is part of their strategy to manipulate you and scare you.
There are other ways to recover your data: call on Chronodisk!

Why choose Chronodisk for post-ransomware recovery?
Data recovery is a complex process that requires technical skill and extensive experience. To guarantee successful data recovery, here are some of the essential qualities a data recovery expert must have:
- Technical skills: Our technicians have in-depth knowledge of data recovery technologies and software. They can use different tools to recover data from different types of storage media.
- Experience: Chronodisk has more than 15 years of experience recovering data from different types of storage media such as hard drives, SSDs, USB keys, memory cards, and more. We are also able to work with different operating systems such as Windows, Mac, Linux, and more.
- Responsiveness: Data recovery is often an emergency, so we offer options that let you recover your data as quickly as possible. Our technicians can work fast and efficiently to minimise data loss. Our sales team is also available to answer questions and address concerns throughout the data recovery process. (ON-CALL UNIT)
- Precision: Data recovery can be a delicate operation, so the data recovery expert must be extremely precise in their work. They must make sure all data is recovered and checked to confirm its integrity.
- Confidentiality: Recovered data can contain sensitive and confidential information — Chronodisk works with strict respect for data confidentiality and security. We guarantee that recovered data is never disclosed to unauthorised third parties.
Confidentiality and Ethics
The confidentiality of your data matters a great deal to us. Chronodisk’s services are carried out confidentially — only a case number is used throughout the process.
We are ready to sign a confidentiality undertaking or a non-disclosure agreement to ensure all personal data stays confidential.
We never outsource a case, whatever the type of fault. We are a fully French, independent company.
Our employees’ contracts include a confidentiality clause.
We have made the deliberate decision never to interact with cybercriminals.
Using sources outside the dark web, we closely monitor how ransomware groups evolve. We do not offer a negotiation service.
Our expertise and our R&D efforts are what produce our technical results.