What Steps Must Be Performed Before Restoring Data from Backup After Ransomware?
An organization is restoring a critical database from a backup after a ransomware attack. Which of the following steps should be performed BEFORE restoring the data to ensure the restoration is successful and secure?
Quick Answer
Verifying the backup's integrity and patching the exploited vulnerability both need to happen before restoration because a ransomware recovery can fail in two very different ways, and this answer addresses both. First, ransomware attacks sometimes reach backup systems too, so a backup that looks available might actually be corrupted, incomplete, or even quietly encrypted itself; checking it with something like a checksum comparison or a test restore confirms the data you're about to bring back is actually clean and usable. Second, if the original vulnerability that let the attacker in is never patched, restoring the exact same environment simply reopens the same door, and the newly restored system can be re-compromised or re-encrypted almost immediately. Neither step alone is sufficient: a verified, clean backup restored onto a still-vulnerable system is just as much a failure as patching a system and then restoring corrupted data onto it. Together they represent the two halves of a secure recovery, confirming what you're restoring is trustworthy and confirming the environment you're restoring it into won't immediately be compromised again. When a scenario asks what must happen before a post-incident restoration, look for an answer that covers both the integrity of the data being restored and the security gap that caused the incident in the first place.
⚠ Common exam trap
Watch out — candidates often assume restoring the most recent backup is always the priority, but the SSCP exam emphasizes that verifying backup integrity and securing the environment against re-infection are mandatory prerequisites for a successful and secure recovery.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Verify the integrity of the backup and patch the exploited vulnerability
Verifying backup integrity (e.g., using checksums or restore tests) ensures the backup is not corrupted or incomplete, which is critical after a ransomware attack where backups may also be targeted. Patching the exploited vulnerability (e.g., applying a security update or disabling the vulnerable service) prevents re-infection during or after the restore, ensuring the recovery is secure. Without these steps, restoring a compromised or incomplete backup could lead to data loss or immediate re-encryption by the same ransomware.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Notify users that the system will be available in one hour
Why it's wrong here
Communication is important, but technical steps take priority.
- ✗
Disconnect the backup server from the network
Why it's wrong here
This may be done earlier, but the key step before restore is verification and patching.
- ✗
Immediately restore the most recent backup to minimize data loss
Why it's wrong here
Restoring without verification could reintroduce malware or leave vulnerabilities unpatched.
- ✓
Verify the integrity of the backup and patch the exploited vulnerability
Why this is correct
This ensures the backup is clean and the system is hardened before restoration.
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Same concept, more angles
1 more way this is tested on SSCP
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Variation 1. An organization has experienced a ransomware attack. After containing the incident, the response team plans to restore systems from backups. Which step is most critical before restoring production systems?
medium- A.Verify the integrity of backup data by restoring to an isolated test environment.
- B.Notify law enforcement immediately.
- ✓ C.Patch the exploited vulnerability and ensure the backup is free of malware.
- D.Disconnect all systems from the network.
Why C: Restoring from backups while the original vulnerability remains unpatched would allow the ransomware to reinfect the systems immediately. Additionally, if the backup itself contains malware (e.g., the ransomware encrypted the backup repository), restoring it would reintroduce the infection. Patching the exploited vulnerability and verifying the backup is clean ensures a safe restoration point, breaking the attack chain.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SSCP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SSCP exam.