ADP Vulnerability Statement - Apache Log4j Vulnerability - CVE-2021-44228

December 13, 2021

ADP is aware of the following Apache Log4j Remote Code Execution Vulnerability:

• CVE-2021-44228

Upon receiving reports regarding this vulnerability, ADP’s Global Security Organization began an investigation to determine any potential impacts to our system. At this time, ADP has determined that none of its systems have been compromised by this attack, and no intrusion has occurred. ADP’s layered defense includes technologies and controls to identify and/or prevent these types of threats, including assessing vulnerabilities and applying appropriate protection and detection control updates.

ADP’s Global Security Organization continues to actively monitor and respond to this developing situation as it does with all reported vulnerabilities. Clients are encouraged to visit ADP’s website at www.adp.com/trust to learn more about how ADP protects data, and how clients can help protect themselves.

Protecting our clients and their data from malicious activity is a top priority for ADP.