ity of those laws as they apply to online services. Mail bombingsSoftware can be written that will instruct a computer to do almost anything, and terrorism has hit the Internet in the form of mail bombings. By instructing a computer to repeatedly send electronic mail (email) to a specified person's email address, the cybercriminal can overwhelm the recipient's personal account and potentially shut down entire systems. This may or may not be illegal, but it is certainly disruptive. Well-known journalists Joshua Quittner and Michelle Slatalla learned the hard way what it feels like to be targeted by mail bombs when their home computer was flooded with jibberish and their phone lines were rerouted for a weekend.Password sniffersPassword sniffers are programs that monitor and record the name and password of network users as they log in, jeopardizing security at a site. Whoever installs the sniffer can then impersonate an authorized user and log in to access restricted documents. Laws are not yet set up to adequately prosecute a person for impersonating another person on-line, but laws designed to prevent unauthorized access to information may be effective in apprehending hackers using sniffer programs. The Wall Street Journal suggests in recent reports that hackers may have sniffed out passwords used by members of America OnLine, a service with more than 3.5 million subscribers. If the reports are accurate, even the president of the service found his account security jeopardized.SpoofingSpoofing is the act of disguising one computer to electronically "look" like another computer in order to gain access to a system that would normally be restricted. Legally, this can be handled in the same manner as password sniffers, but the law will have to change if spoofing is going to be addressed with more than a quick-fix solution. Spoofing was used to access valuable documents stored on a computer belonging to security expert Tsutomu Shimomura.Credit...