The latest amendment to Act No 412/2005 on the protection of classified information and security capacity, as amended, which entered into force on 1 January 2025, introduced a change consisting in the obligation to carry out ‘de-information’. In the event of termination of a service relationship or employment, membership or similar relationship, or in the event of a change in a service office in which a natural person has been granted access to classified information, that person shall confirm in writing that he or she is aware of the obligation to maintain confidentiality with regard to the classified information to which he or she has had access and not to grant access to it to an unauthorised person. The responsible person is obliged to ensure that this action is carried out. Deletion shall always take place irrespective of the classification level of the classified information to which the individual has had access. This institute, which is based on the regulation of the protection of classified information within the EU and NATO, aims to increase prevention within the framework of the protection of classified information. In order to reduce the administrative burden, debriefing may be included in another document.

Recommended pattern is available for download here .

It is also available for download in the section Protection of classified information - Personnel security - General to personnel security.