HyperBUNKER
Physically isolated recovery for critical operations
Guides

Recovery guides

Plain-language guides on physically isolated recovery: why recovery copies fail, how to audit the 3-2-1-1-0 rule, what cyber insurers now require, and more.

Guide 1
Recovering OT systems after total compromise: what actually works
When ransomware reaches operational technology, the plant stops and the recovery plan meets reality. What the first 72 hours look like, why rebuilds take weeks, and what shortens them to hours.
Guide 2
Why recovery copies fail when ransomware hits
Attackers encrypt the recovery estate before the attack you notice. Two mechanisms explain nearly every failure: a network path that existed, and credentials that worked.
Guide 3
"Air-gapped," object lock, and what actually survives an attack
The market says "air-gapped" about copies a packet can reach. A plain taxonomy of isolation claims, from marketing language to physics, and how to tell which one you bought.
Guide 4
The 3-2-1-1-0 rule: how to audit the two digits everyone fails
Three copies, two media, one offsite, one immutable, zero errors. The rule is right. The last two digits are where audits get uncomfortable, and where recovery actually lives.
Guide 5
What cyber insurers now ask about recovery, and how to answer
Underwriters have stopped asking whether you have copies. They ask whether an attacker could reach them, and whether you have proven a restore. How the questions changed and what a good answer looks like.
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