On May 18, as part of a continuing effort to enhance computer and network security, UC Davis discontinued insecure telnet and FTP access to the central (ISUN) servers. These protocols previously allowed unencrypted password exchanges, which could permit an unauthorized individual to capture a user's password and use it for malicious purposes. Communications have been targeted to users who have attempted to access the ISUN servers via insecure means in the last year, providing secure alternatives to the insecure telnet and FTP methods. For more information, see security.ucdavis.edu/telnet_ftp.cfm.