password security notice password renewals security controls password security notice passwords key maintaining information system security use well selected guarded passwords password first line defense stronger password selection criteria soon implemented employees password policy passwords 1 must least eight characters length 2 must contain names userids common english dictionary words begin end number 3 must contain alphanumeric characters contain least one special character fifty percent overall password english 4 must reused cyclical 5 must changed every 60 days 6 must publicly displayed 7 must shared users choosing good password comes two things first avoid common everyday words potential hacker software looking second keep password simple enough remember without write please keep mind enron code ethics holds employees responsible password security security controls conducts periodic audits ensure compliance company policy problems encountered concerning password controls please call appropriate resolution center available 24 hrs day 7 days week