*** BE AWARE OF WHO IS CALLING - AT&T Security warns employees this weekend to be especially careful about giving proprietary company information to anyone claiming to be an AT&T employee or customer. As part of a H2K Hacker Conference July 14-16 in New York City, there is a social engineering contest where hackers attempt to gain proprietary information about a company. If anyone unknown to you calls for such information, request a call-back number and check it before returning the call. Verify the person is an AT&T employee or a legitimate customer and if he or she has a need to know. If you can't verify employment or the number, don't give out the information. Any incident or apparent attempt to compromise the security of the company’s network and/or computer systems should be reported immediately to AT&T Corporate Security