Update of Kaspersky product key

On 2020-11-07 the product key of the Kaspersky scanner expired. Please update to this release of install a new Kaspersky engine to continue using the scanner.

Minor bugfixes and improvements

New IDS/IPS version

The new version includes more and better signatures. Please update soon as the signatures for older releases will be updated only partially.

Minor bugfixes and improvements

PPP protocol

The update fixes a buffer overflow in the ppp service which is used for ADSL and L2TP connections. The vulnerability is critical as it can be exploited before authentication.

Disabling SMB1 protocol

If automatic backups and archiving of logfiles is configured to store the files on a Windows share, the insecure SMB1 protocol or older has been used. With the update at least SMB 2.1.0 is required (Windows 2008R2, Windows 7 or newer).
For NTLM authentication and network shares all current SMB versions used to be available, however SMB1 was also still allowed. An attacker could have forced a protocol downgrade to the SMB1 protocol. The minimum protocol version here is now also SMB 2.1.0.

Minor bugfixes and improvements

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