Sophisticated ransomware attacks render backups useless in several critical ways. First, attackers increasingly target backup systems themselves, attempting to delete or encrypt backup data to prevent recovery. Second, ransomware can exploit vulnerabilities to spread stealthily, bypassing traditional defenses and compromising backups before detection. Third, some malware includes evasion techniques that fool endpoint detection and response tools, making backup data the last line of defense. Fourth, if backups are not immutable or properly isolated, they can be altered or destroyed. Finally, lack of frequent, tested backups delays recovery. Cohesity addresses these risks by providing immutable, air-gapped backups with automated ransomware detection and rapid recovery capabilities.

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