On Friday 10 December 2021, the Australian Cyber Security Centre (ACSC) issued a critical alert on a vulnerability in the Apache Log4j2 software library. Malicious cyber actors have used this vulnerability to target and compromise systems globally and in Australia. As of 15 December 2021, the ACSC has also published an advisory regarding mitigation and detection recommendations and noting that malicious online actors are scanning networks in attempts to locate vulnerable servers. Australians are urged to act now to secure their computer systems against this critical software vulnerability and apply appropriate software patches and updates. On Friday 17 December 2021, the ACSC’s Joint Cyber Security Centres (JCSCs) will facilitate a series of virtual awareness and advice sessions on the Log4j2 vulnerability. For organisations or individuals that would like to attend, please click on the appropriate link in the table below at the scheduled time to join the presentation. Friday 17 December 2021 Lead JCSC Local Time AEDT VTC details Melbourne 0900 (AEDT) 0900 Web URL (laptop/desktop): https://jcsc.webex.com/jcsc/j.php?MTID=mf11eb11e044fc6edfb85fd848f45e5b9 Join by meeting number: 2651 858 4659 Meeting password: Jue8Fv For video systems: 26518584659@jcsc.webex.com Video system password: 583838 Sydney 1000 (AEDT) 1000 Web URL (laptop/desktop): https://jcsc.webex.com/jcsc/j.php?MTID=m91eec486d4471a631ef13f9daed93cce Join by meeting number: 2654 730 4962 Meeting password: 8xGhm2 For video systems: 26547304962@jcsc.webex.com Video system password: 894462 Adelaide 1030 (ACDT) 1100 Web URL (laptop/desktop): https://jcsc.webex.com/jcsc/j.php?MTID=ma751e96bb349e7cf2200d39793478aa2 Join by meeting number: 2650 971 9015 Meeting password: HQsAPy For video systems: 26509719015@jcsc.webex.com Video system password: 477279 Brisbane 1100 (AEST) 1200 Web URL (laptop/desktop): https://jcsc.webex.com/jcsc/j.php?MTID=mc0fbbef63afe97cb0e4e47f8d8420ac0 Join by meeting number: 2654 798 2815 Meeting password: qQwpu3rwk35 For video systems: 26547982815@jcsc.webex.com Video system password: 77978379 Perth 1000 (AWST) 1300 Web URL (laptop/desktop): https://jcsc.webex.com/jcsc/j.php?MTID=m1042859fe067997ec6760a8af11cd901 Join by meeting number: 2653 565 5349 Meeting password: hiCQ36 For video systems: 26535655349@jcsc.webex.com Video system password: 442736 For further information, please contact acsc.partner.info@defence.gov.au