Ransomware and other malware are a constant threat, and data backup is critical to safeguard a business’ most important asset. However, cybercriminals are increasingly targeting and encrypting backup data copies as well, a strategy that leaves organisations unable to recover unless they pay the ransom. Keeping an immutable copy of backup data is a best practice for data protection and is the solution in the event of a successful two-pronged ransomware attack. What is an immutable architecture? For data to be immutable means that it is unable to be changed over a period of time. With an immutable architecture, when retention policies are set for data backup and recovery, data will be secured, locked and unchangeable for that retention period. This in turn means that it cannot be encrypted b...