A Medallion Guarantee is a contractual risk-transfer tool, not insurance or a notary service. For high-value transfers, a customer's bank can issue a medallion to guarantee their identity, shifting the financial liability for fraud from the receiving institution (with little customer history) to the bank (with deep customer history), usually at no cost to the client.

Your physical identity (Social Security number, etc.) is trivial to breach. The single most effective defense is to lock your credit reports with the major bureaus. This prevents fraudulent accounts from being opened in your name, as it blocks most verification checks, effectively freezing out attackers.

Counterintuitively, charities are a major fraud target not for their funds, but as a tool. Fraudsters use them for small, initial transactions to test if a stolen credit card is active. This validation makes the card more valuable for larger fraudulent purchases, putting charities on the frontline of the fraud supply chain.

The classic "stranger danger" warnings are outdated. Parents must now educate children about AI scams like voice cloning and deepfakes. Establishing a non-obvious family safe word and a protocol of hanging up and calling back on a different line is a critical modern safety measure.

The evolution of fraud prevention is shifting from a static view of "who the customer is" to a real-time understanding of "what this customer is trying to do right now." This focus on intent allows brands to adapt dynamically, either stopping abuse or creating loyalty.

In sophisticated bank fraud calls, scammers build credibility by mentioning your recent, actual purchases. They use this trust to ask you to "confirm" sensitive info or move money to a "safe" account which they actually control.

The primary ACATS fraud vector doesn't involve hacking the victim's existing brokerage. Instead, criminals use stolen identity data to open a brand-new account at a different firm. They then initiate a transfer from this new, trusted institution, which sends a facially valid request that the victim's original firm is pressured to approve quickly.

You can prevent hackers from hijacking your phone number to intercept 2FA codes by requesting a "SIM lock" from your mobile provider. This critical step blocks unauthorized porting of your number to a new device.

Real answers to security questions like "mother's maiden name" are often publicly discoverable. A safer practice is to create a unique, memorable, but entirely fake answer (e.g., "bobsled") and use it consistently for that question.