Dear CEO of an AFBS Member Institute

The AFBS has been made aware via the EBA Cyber Expert Group that ongoing DDoS* attacks with related blackmailing are targeting banks in Switzerland. It seems that the attacks exclusively target the financial sector and that several banks have been targeted / have suffered attacks.

Please note the following points:

  • Additional attack with blackmailing are reporting, going back to 13 August 2020
  • Attackers seem to target small-sized banks preferentially
  • MELANI has reported about ongoing DDoS attacks targeting banks
  • Upon demand by a large Swiss bank, FS-ISAC set up a task force on 19 August 2020
  • The campaign is reportedly running since 11 August 2020, targeting mostly American (based) banks
  • The attacker is said not to be Fancy Bear, but most probably a copy-cat
  • No huge / long-lasting DDoS attacks have been reported so far

No information regarding the detailed content of the blackmailing message is available.

* DDoS : Distributed Denial of Service is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services. This is typically done by flooding the internet facing network services of the target/victim.

In order to establish a network among the AFBS for the sharing of IT security relevant information please indicate the person in charge within your organisation to We will create an AFBS Group on Cyber Security and thus be able to distribute information in a more targeted manner in the future.

If you have questions / further information on this or any related attack please contact your IT security partner. If you would like to share information with the AFBS members please contact at the Secretariat.

Thank you in advance.