As with online login attempts, call center fraud can be identified by abnormal events like calls from unfamiliar devices or strange caller behavior. Recognizing these signs is key to early detection and prevention of phone-based fraud. Here are some other common indicators:
- Repeated attempts to reset passwords or change security settings
- Inconsistent answers to KBA questions
- High volumes of calls
- Inconsistent accents or changing voice patterns (may indicate use of voice changer)
- Demands to skip traditional authentication processes
Of course, these events do not guarantee the caller is attempting fraud. The reason behind a change in voice could be as innocent as the common cold, and impatient demands are nothing new in the world of call centers. Nonetheless, in light of the major risk fraud poses to the security of an organization, these signs should trigger additional caution and verification steps.
Even looking at data, there can be signals that a caller is potentially fraudulent, for example, if running passive checks on the caller’s PII shows a high probability of fraud (using our Sigma Identity Fraud product) or just looking at the signals from the phone number to understand if the phone number is risky and belongs to the applicant (using the Phone Risk module) should trigger additional identity verification steps.