Binance ‘red teams’ its own staff every month to keep hackers out

In the world of building crypto products, we spend an obsessive amount of time auditing smart contracts and hardening backends. We treat the code like a fortress. But there is a glaring hole in the side of that fortress that most founders hate to talk about: the people holding the keys.

The Human Attack Surface

Recent reports coming out of Binance highlight a practice that every founder needs to pay attention to. They are running internal "red team" operations every single month. This isn't just about scanning for software vulnerabilities. They are actively trying to phish and social engineer their own employees to see who cracks under pressure.

This might sound paranoid or even slightly hostile toward staff, but if you've been in this space for more than a week, you know the reality. We aren't just fighting script kiddies anymore. We are fighting state-sponsored actors and professional syndicates that view a single junior developer's Telegram account as the front door to a billion dollars in liquidity.

Why Social Engineering Wins

Social engineering is the path of least resistance. Why spend months looking for a zero-day exploit in a hardened consensus engine when you can just send a fake "Urgent HR Update" PDF to a marketing lead? Once you're inside the local environment of one employee, the lateral movement begins. The bridge to production is often closer than we like to admit.

Binance's strategy of monthly drills acknowledges a hard truth: security isn't a state you achieve; it's a muscle you have to keep under tension. If you stop training, the muscle atrophies. In their case, if an employee fails a test—like clicking a suspicious link or entering credentials into a fake portal—they don't just get a slap on the wrist. They get targeted retraining.

The Founder's Dilemma

As a builder, this creates a cultural challenge. How do you maintain a culture of trust while essentially running psychological operations against your own team? For a startup, this is a delicate balance. If you're too aggressive, you kill morale. If you're too lax, you lose the treasury.

I’ve seen too many teams treat security as a one-time audit. They get the PDF from the security firm, fix the high-priority bugs, and then go back to shipping features. But security audits don't cover the way your lead dev manages their Discord password or how your community manager handles "support" requests that actually contain malware.

The Hierarchy of Risk

• Direct Phishing: Most breaches start here. Simple, effective, and surprisingly hard to stop with software alone.
• Lateral Movement: One compromised laptop becomes a gateway to the internal Slack, then the GitHub repo, then the deployment keys.
• The "Loyalty" Gap: Remote teams are harder to vet and easier to impersonate. The decentralized nature of our work makes us more vulnerable to identity spoofing.

What Builders Should Do

If you aren't at the scale of Binance, you likely can't afford a full-time internal red team. However, you can adopt the mindset. You need to be thinking about how someone would trick your team into giving up the keys to the kingdom.

First, you have to move beyond just 2FA. Everyone has 2FA now, and hackers have figured out how to bypass it through session hijacking or simple fatigue. You need hardware keys (like YubiKeys) for anything touching production. No exceptions.

Second, you need to normalize skepticism. In most corporate cultures, being helpful is a virtue. In crypto, being reflexively helpful to a stranger is a liability. Your team needs to be trained to assume that any unsolicited attachment or link is a threat until proven otherwise.

The Reality Check

The industry is maturing, and with that comes a more professional class of attackers. They are patient. They will spend months building a profile on your employees before they strike. They watch who is active on LinkedIn, who is complaining about their workload on Twitter, and who is most likely to click a link while they're distracted.

"If your security strategy depends on your employees never making a mistake, you don't have a security strategy."

Binance's proactive approach is a signal for the rest of the industry. We have to move away from the idea that security is just about the code. It is about the environment in which that code is written and deployed. If the environment is compromised, the code doesn't matter.

Building a Culture of Resistance

Founders often ask me how to start this without scaring off talent. It starts with transparency. Tell your team that you will be testing them. Tell them why. Show them the data on recent hacks and how many of them were simple social engineering wins. When people understand the stakes—that the company's survival depends on their individual vigilance—they usually step up.

Don't just run one test and call it a day. The attackers are innovating as fast as we are. They are using AI to write better phishing emails and deepfake audio to impersonate executives. The monthly cadence Binance uses is probably the minimum required to keep pace with the evolving threat landscape.

Takeaway for the Week

Audit your people as often as you audit your code. If you haven't simulated a social engineering attack on your own team in the last six months, you are essentially flying blind. You don't need a massive budget to do this, but you do need the discipline to treat human error as the existential threat that it is. The hackers aren't trying to break your encryption; they're trying to break your employees.

Read the original at Cointelegraph →