Why ransomware attacks succeed even when backups exist
Enable immutable backups and enforce MFA on backup systems to stop ransomware from deleting snapshots.
Enable immutable backups, enforce MFA, isolate backup environments, monitor activity, and test recovery to protect against ransomware.
Summary
Backups are often the last line of defense against ransomware, but attackers routinely target and destroy backup systems before encrypting data.
Acronis Cyber Platform addresses this by combining backup with endpoint protection, credential monitoring, and threat detection, and by enforcing immutability through WORM storage, time‑based retention locks, and protection against API misuse.
The article explains that many backup setups lack isolation, share credentials, and omit MFA, making them vulnerable to VSS deletion, hypervisor snapshot tampering, and cloud API exploitation.
It lists five key practices: enforce identity separation with dedicated credentials and MFA, isolate backup environments, use immutable backups, monitor backup activity for anomalies, and test recovery regularly.
Without these safeguards, attackers can delete or encrypt snapshots, disable backup agents, and modify retention policies, leaving no clean recovery points.
Key changes
- Acronis Cyber Platform integrates backup with endpoint protection, credential monitoring, and threat detection.
- Immutability is enforced via WORM storage, time‑based retention locks, and protection against API misuse.
- Many backup setups lack isolation, share credentials, and omit MFA, making them vulnerable to VSS deletion and hypervisor snapshot tampering.
- Attackers can delete or encrypt snapshots, disable backup agents, and modify retention policies.
- Recommended practices: enforce identity separation with dedicated credentials and MFA, isolate backup environments, use immutable backups, monitor backup activity, and test recovery.
- A resilient backup strategy must integrate security controls, automate validation, and maintain end‑to‑end visibility.