A bank, an exchange, a custodian and a tokenization platform do not share a threat model, a buying process or an evidence requirement. These pages describe what a security programme looks like for each.
Most blockchain security marketing is written for one buyer: a protocol team shipping to mainnet on a deadline. That buyer exists, and the rest of the market looks nothing like them. A custodian is buying a demonstrable key-management model. An exchange is buying containment of insider capability. A bank is buying a position its second line of defence can defend. An investor is buying an answer to how a position goes to zero.
The technical work overlaps heavily; the scope, the priorities and the deliverable do not. These pages set out what each segment actually needs, what usually goes wrong in it, and what evidence the engagement has to produce beyond a list of findings.
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