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Horison Information Strategies
Given the changing landscape of the IT industry, many of the original concepts about backups are delivering additional value and are now back in style. One of those original backup concepts is the 3-2-1 rule. This rule states enterprises should have three copies of backups on two different media types, one of which is kept offsite. There are two ways to have an offsite copy – either with an online (electronic access) or with an offline (manual access) cloud. The offsite and offline copy is rapidly becoming more critical and describes what is now referred to as an “air gap”. An “air gap” is an electronically disconnected copy of data that prevents rolling cybercrime disasters from getting to all your backup copies. The only way to create a physical air gap is to copy data to removable media and store that media offline. This makes tape media an ideal solution for most data centers. An off-site backup and storage facility can be either online, offline or both and can often be the most physically secure facilities in the industry.
You can put an electronic air gap between your backup server and backup storage by making sure that the backup is not accessible via any network or electronic connection. Most tape cartridges typically reside in library racks meaning they are offline well over 95% of the time (protected by the air gap) and are not electronically accessible to hackers.
The air gap prevents cyber-attacks since data stored offline – without an electronic access – cannot be hacked. For example, “ransomware” is the latest crypto-viral extortion technique which encrypts the victim’s files making them inaccessible, and then demands a ransom payment to decrypt them. These new types of attacks embed time-delayed undetected malware into your backup repositories sometimes taking several months to reactivate. This makes file restoration pointless because as you recover your data, the ransomware re-ignites and then re-encrypts the data all over again. This is known as the Attack-Loop™.
Whether you have the best backup solution, the latest anti-virus protection, or multiple versions of back up repositories, this next generation of cybercrime is evolving so quickly that those concepts seldom matter anymore. In a cloud-based backup, critical data is backed-up over the internet and most likely stored in a shared storage infrastructure at an off-site data center maintained by a third-party cloud company providing backup, archiving and replication services.
Fortunately, Attack Loop software is now becoming available and uses signature-less technology which checks and quarantines malicious code upon entry into the backup repository and again prior to recovery into your online environment. Combining offline tape storage with Attack Loop software yields the greatest chance of preventing cybercrime.
Given the rising wave of cybercrime, the role of tape-based offline storage and cloud solutions taking advantage of the “Tape Air Gap” is back in style.