ACCA Applied Knowledge · Business and Technology · The impact of advances in technology
A firm is hit by ransomware that encrypts its files. Management wants a control that would MOST effectively allow it to restore operations without paying the ransom. Which is best?
Regular backups held offline or separate from the network, and tested for restoration, are the best response. They allow clean data to be restored after files are encrypted. A perimeter firewall and password changes are preventive measures and do not recover data already encrypted.
- ARegular backups stored offline or separately from the main network, tested for restorationCorrect
- BInstalling a firewall at the network perimeter only
- CRequiring staff to change passwords every month
Explanation
Isolated, tested backups let the firm restore clean data after encryption, so no ransom is needed. A perimeter firewall is preventive and may not stop malware entering by email, and password changes do not recover encrypted files.
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