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Avira Antivirus

Due to a misconfigured update procedure the scanner failed to connect with the servers for online queries after the signature update from 2020-01-14, about 16:00 CET.

Let's Encrypt certificates

The Let's Encrypt client now uses the ACMEv2 protocol.

Minor bugfixes and improvements

Update of the POP3/IMAP4 server

This update fixes a critical security issue. An attacker was able to read protected information or even execute their own program code without authentication.

Minor bugfixes and improvements


DEFENDO forces a collection of best-of-breed security modules like firewall, VPN, proxies, virus scanner and anti spam system to interact for one purpose:
To be protected from all online threats and unwanted contents like malicious code, spam and hacker attacks.


Each IT scenario is different. The DEFENDO product family will adapt precisely to your demands.
DEFENDO applies for simple internet connections of small companies, for headquarters / branch office WANs, as well as for complex multi-tiered firewall systems.

More good reasons

  • No backdoors
  • More than 20 years of Internet security experience
  • Award-winning product
  • Support by our development engineers
  • Reseller loyalty
  • Made in Germany