Lamo said he had arranged to surrender to federal authorities to face computer-trespass charges.
Lamo, who has no permanent address, could face fines and prison time of up to 10 years under the Computer Fraud and Abuse Act of 1986, which outlaws such behavior.
Lamo has exposed flaws in corporate networks and has a knack for finding backdoors through laser printers and other unlikely access points.
Lamo often offered to work for free with his subjects to fix their holes, and some including WorldCom, now known as MCI WCOEQ.PK , have expressed gratitude for his work.
Lamo hacked The New York Times network in February 2002, accessing employee records, home-delivery account information and the phone numbers and Social Security numbers of op-ed page contributors. U.S. prosecutors opened an investigation shortly afterward.
Lamo said in a telephone interview he found out about the charges last week but waited to turn himself in so he would not have to sit in jail through the weekend.
“This has been an extremely surreal weekend. I don’t think that what I’ve done is wrong but I understand that my actions have consequences,” Lamo said.