> The war dialing started last night and has continued throught the day. They are being very noisy, staying on the line with a steady beep, beep, beep long enough to leave a voice message. The calling has occcured on two different prefixes so I am concerned my company is being targeted. > > Our local service provider's security and fraud team has not been able to identify a single source of the calls. ? Bizarre. > We have recently done our own War-dail and feel we know all our modems are secured correctly. > > Any thoughts on additional steps I should be taking? > > thanks > Phred Make darn sure your voicemail passwords are good or you may get to experience the fun of toll fraud. Any messages that say "Yes" or "Yes.. Yes.... Yes" are a good indication that toll fraud is about to happen (or already has). Kurt Seifried, kurtat_private A15B BEE5 B391 B9AD B0EF AEB0 AD63 0B4E AD56 E574 http://seifried.org/security/ ---------------------------------------------------------------------------- Attend Black Hat Briefings & Training Europe, May 12-15 in Amsterdam, the world's premier event for IT and network security experts. The two-day Training features 6 hand-on courses on May 12-13 taught by professionals. The two-day Briefings on May 14-15 features 24 top speakers with no vendor sales pitches. Deadline for the best rates is April 25. Register today to ensure your place. http://www.securityfocus.com/BlackHat-incidents ----------------------------------------------------------------------------
This archive was generated by hypermail 2b30 : Mon Apr 21 2003 - 10:24:49 PDT