Abstract: A computer-implemented method for detecting calls from illegitimate calling parties may include (1) collecting information about a plurality of calls received at a plurality of telephonic devices, (2) analyzing the information about the plurality of calls to identify at least one call pattern of illegitimate calling parties, (3) detecting, at a telephonic device, an incoming call, (4) determining whether one or more calls from the calling party of the incoming call fit the call pattern of illegitimate calling parties, and (5) disposing of the incoming call based at least in part on determining whether the one or more calls from the calling party of the incoming call fit the call pattern of illegitimate calling parties. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A computer-implemented method for responding to security breaches may include (1) receiving a notification that a service provider has experienced a security breach, (2) identifying a first user account that is potentially affected by the security breach by identifying an account management database that stores users' account information for a plurality of different service providers and searching the account management database for user accounts associated with the service provider that experienced the security breach, and (3) performing, for the first user account that is potentially affected by the security breach, a security action that addresses the security breach. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A computer-implemented method for tracing attacks. The method may include identifying a first website and determining that the first website loads an attack remotely through a second website. The method may also include determining that the second website hosts the attack. The method may include performing a security action, such as blocking downloads from the second website, with respect to the second website. The attack may be a drive-by download. Corresponding systems and computer-readable media are also disclosed.