Signal, Telegram, Wire… but no one-fits-all.

Secure messaging, (group)calls, video, screen sharing.

SSL/TLS client certificates - only authorized persons can access the interface (mitigation for exploiting unknown vulnerabilities in their interfaces).

GPG - Kleopatra (yes, please encrypt at least your important emails containing sensitive information like PII or financial data).

OSS Weekend slides, PDF, 2.7 MB Team cooperationīefore the incident happens, it is important to establish team communication channels and cooperation methods. Yes, it is sometimes question of money vs time. On the other hand, the participation of clever and engaged people is always required for similar tasks in cybersecurity, and use of Open Source and Free(ware) tools can have some caveats with need of more tinkering or adjustments.

The motivation behind this list is help to enthusiasts and new teams to prepare and/or strengthen technical equipment needed for incident response with minimal costs.

Some people asked me what tools can be useful for Incident Response and for the CSIRT/CERT teams, so I decided to prepare list of such tools and seize the opportunity of the Open Source Weekend in Košice, Slovakia on 19th October.

Pestudio group