The BSI strives to make recommendations in a constructive dialogue with members of industry.
Those interested in joining the conversation are welcome to contact us at ics-sec@bsi.bund.de.

ICS-Public-Key

Public PGP Fingerprint from ICS-Sec:
pub rsa4096/D7AFBCA4A48BC3EB 2025-02-17 [SC] [valid to: 2026-02-27]
77210843B0CF7323A41B4B25D7AFBCA4A48BC3EB
uid [ ultimativ ] ICS-SEC 2025 (ICS-SEC Postfach 2025-2026) <ics-sec@bsi.bund.de>
sub rsa4096/8B302BBE476156D3 2025-02-17 [E] [valid to: 2026-02-27]

S/MIME

For S/MIME-encrypted e-mail communication, please use the following certificates:

Root certificate of the administrative: PCA-1-Verwaltung-23
Validity: to 01.01.2033
Fingerprint: 2101 B6BE 7F1A F2FD B284  442B FD95 6CE2 70BC 9A9F

Intermediate certificate of the IVBB CA (Berlin-Bonn Information Network): CA IVBB Deutsche Telekom AG 23
Validity: to 15.11.2027
Fingerprint: 2101 B6BE 7F1A F2FD B284  442B FD95 6CE2 70BC 9A9F

User certificate of ICS Sec:
Validity: Tuesday, 15. Januar 2019 14:24:37 to Sunday, 16. Januar 2022 00:59:59
Fingerprint: 4E:E9:EA:52:61:B7:40:CD:DD:5F:54:87:08:DE:42:AB:1B:3A:86:6F

Additional ways to reach the BSI can be found here.