An anonymous reader quotes a report from Help Net Security:
Cybercriminals are using insiders to gain access to telecommunications networks and subscriber data, according to Kaspersky Lab. In addition, these criminals are also recruiting disillusioned employees through underground channels and blackmailing staff using compromising information gathered from open sources…
According to Kaspersky Lab researchers, if an attack on a cellular service provider is planned, criminals will seek out employees who can provide fast track access to subscriber and company data or SIM card duplication/illegal reissuing. If the target is an Internet service provider, the attackers will try to identify the employees who can enable network mapping and man-in-the-middle attacks.
Read more of this story at Slashdot.