INTERNET AND Information Technology College of Public and Community Service University of Massachusetts at Boston ©2011 William Holmes 1
INTERNET ISSUES Type of Connection Virus Protection Spyware Protection Firewall Backing up Privacy and Monitoring 2
INTERNET TIPS I Internet Use Cleanup Beware “Phishing” Don’t save passwords Tradeoff : Dialup, DSL, Cable, T1 3
INTERNET TIPS II Protect Content Have adequate memory Don’t leave on Beware “wakeups” 4
ISSUES Differences Among Programs Filters—spam and risky files Viruses Embedded links Deleting and purging Saving 5
FILE ATTACHMENTS File naming Attachment filters File size Multiple files Downloading files Lost Attachments 6
FILE COMPRESSION 1.Zipping and Unzipping 2.Proprietary compression 3.Automatic decompression 4.Can usually be decompressed without keys 5.File vary in decompressability 7
FILE ENCRYPTION Converts characters, spaces, and colors to random digits Uses password key Has Public Keys and private keys Can’t be decrypted without keys (usually) 8
LISTS Group member lists Userlists from repeat mailings Reply to sender versus all Blind cc allows hidden recipients
TIPS Insert icons for interest Use small pictures Use saving for retrieval Have multiple accounts Use Unique Passwords 10
SPECIAL ISSUES Openness of Wireless Text messaging Encrypting Away bouncing Compressing 11