The UK MoD has certified PGP Corporation's whole disk encryption technology as suitable for use on British military computers. However, like most software-only solutions, it has been approved only for machines holding fairly low-level information. PGP Whole Disk Encryption had previously passed the UK government's baseline approval process run by the CESG, but has now been certified by the Defence INFOSEC Product Co-operation Group (DIPCOG) forum as approved for use in MoD and military systems. However a disk protected solely by PGP encryption is only allowed to have RESTRICTED (Impact Level 3) information on it.

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