The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2015
Filed:
Feb. 18, 2013
Applicant:
At&t Intellectual Property I, L.p., Reno, NV (US);
Inventor:
Stephen K. Wood, Whitehouse St., NJ (US);
Assignee:
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/06 (2006.01);
U.S. Cl.
CPC ...
H01L 63/1466 (2013.01); H01L 51/12 (2013.01); H01L 63/1441 (2013.01); H01L 51/28 (2013.01);
Abstract
A method of detecting and responding to an email address harvest attack at an Internet Service Provider (ISP) email system includes counting a number of failed email address look-ups during a single Simple Mail Transfer Protocol (SMTP) session associated with an originating Internet Protocol (IP) address and responding to the originating IP address with a positive acknowledgement that an otherwise invalid email address exists when the count of the number of failed email address look-ups exceeds a threshold.