Binance Tests Employees With Monthly Phishing Drills, Cuts Failure Rate to 0.4%
The exchange's internal Red Team runs simulated social engineering attacks on all staff as part of a zero-tolerance security program.
Binance runs simulated phishing attacks against its own employees every month, a rigorous internal security program that has driven failure rates down from 3.2% to 0.4% over the past three to four years.
The exchange's Red Team, an internal ethical hacking unit, deploys real-world social engineering tactics to test staff resilience. These simulations include impersonating recruiters, sending fake conference invitations, and crafting Zoom-based lures designed to mimic actual attacker behavior.
"We do phishing attacks on our own employees on a monthly basis just so we understand if our security hygiene is improving," said Jimmy Su, Binance's CSO, in an interview with The NY Ledger.
The Human Firewall
The program treats employees as a critical security layer rather than relying solely on technical defenses. Social engineering has become one of the primary vectors for breaches in cryptocurrency and financial services, with attackers targeting the human element to gain high-level system access.
For Binance, the stakes are particularly high. The exchange serves approximately 323 million users and holds $162.8 billion in user assets under custody according to its December 2025 Proof of Reserves, though third-party tracker DefiLlama estimates the figure at $137.7 billion. A single compromised employee account could enable catastrophic financial losses.
Measurable Improvement
The dramatic drop in phishing failure rates, from 3.2% to 0.4%, suggests the monthly drills are achieving their intended effect. By continuously testing staff and providing immediate feedback, Binance aims to harden its workforce against increasingly sophisticated AI-driven social engineering campaigns.
One secondary report citing the program indicated that repeated failures in the drills could result in negative performance reviews, though Binance has not publicly confirmed employment termination as a consequence.
Industry Context
Binance's approach reflects a broader shift in how cryptocurrency exchanges handle operational security. As technical vulnerabilities become harder to exploit, attackers increasingly focus on manipulating employees through convincing impersonations and time-sensitive lures.
The monthly cadence ensures that security awareness remains fresh rather than becoming a once-yearly compliance checkbox. Other financial institutions have adopted similar programs, though few have tied the testing frequency to such aggressive timelines or published their failure rate metrics so transparently.
The exchange detailed aspects of the program in a blog post from its CEO, framing the initiative as part of a broader commitment to protecting user assets through layered defense strategies that combine technical controls with continuous human training.