San Francisco International Airport (SFO) experienced a cyberattack in March 2020 that may have impacted users who accessed SFOConnect.com and SFOConstruction.com, according to a memo sent to all airport commission employees last week. Users who accessed these websites from outside the airport's network via Internet Explorer on a Windows-based personal device may be affected by the cyberattack.Cybercriminals inserted malicious code on SFOConnect.com and SFOConstruction.com to steal users' login credentials, the memo indicated. As such, they may have been able to access some users' login information for their personal devices during the attack.SFOConnect.com and SFOConstruction.com were taken offline after the cyberattack was discovered, the memo stated. In addition, the malicious code used during the cyberattack was removed from both websites, and the airport reset all SFO-related email and network passwords on March 23.SFO is encouraging any SFOConnect.com and SFOConstruction.com users who may have been affected by the cyberattack to change the password for their personal devices. It also is urging these users to change any login credentials that leverage the same username and password combination.