A wallet drainer steals funds through a hidden token approval, not a stolen private key. Here's how to check which permissions you've granted, revoke the risky ones, and why exchanger teams should care too.
How much crypto should stay in cold storage, and how much in the hot wallet, for a crypto exchanger? Here's a practical ratio, custody options, and a rotation routine that actually holds up in practice.
Scammers slip a lookalike address into your transaction history, then wait for you to copy it out of habit. Here's how address poisoning works — and how exchanger operators can protect client payouts.
Crypto custody insurance sounds like a safety net against hacks, but caps, exclusions and sub-limits often leave exchangers holding the loss. Here's what a policy actually covers — and what it doesn't.
Scammers slip a near-identical address into your transaction history, betting you'll copy it out of habit. Here's how address poisoning works and why exchangers end up footing the bill for a client's mistake.
SIM swapping lets criminals hijack a customer's phone number and breeze through SMS login or withdrawal codes. Here's how exchanger operators can close that gap without complicating life for clients.
How much crypto should an exchanger actually keep in a hot wallet? A practical formula based on daily turnover, a volatility buffer for demand spikes, and a playbook for when the reserve runs dry mid-day.
Five comfortable myths about crypto wallet security that exchanger owners believe — from 'a wallet is safe out of the box' to 'non-custodial means not my problem.' Here's why each one costs more than it looks.
If you're the only one who knows your seed phrase, your crypto can vanish for good the day you're gone. Here's how multisig, Shamir's Secret Sharing and dead man's switch services actually solve wallet inheritance.
A multisig wallet splits transaction signing across several keys under an M-of-N scheme. We look at who actually needs this protection, which setup mistakes cancel it out, and how it compares to MPC.
Passkey wallets let you unlock crypto with a fingerprint or face instead of a 24-word phrase. Here's how they actually work, who they suit, and which risks stick around once the paper is gone.
A hot wallet is the most exposed part of any crypto exchanger's stack: one forgotten token approval or a leaked key can empty it in minutes. Here are five common mistakes — and how to fix each one.
Keep too much in your hot wallet and one breach can wipe out the business. Keep too little and customers wait forever for payouts. Here's a working formula for splitting exchanger reserves between hot and cold storage.
A multisig wallet doesn't make theft impossible and it isn't a substitute for internal controls. We bust five myths about multisig wallets that cost exchanger owners money, plus how to pick the right signing threshold.
Account-abstraction smart wallets remove an exchanger's single point of failure: one seed phrase. Here's how session keys and social recovery work, and where the technology still falls short.
Multisig and MPC wallets protect an exchanger's hot balance in different ways. Here's how joint signing differs from key-sharding, and how to pick a model based on transaction volume and team size.
An MPC wallet splits your private key into cryptographic shares instead of separate keys like multisig, closing the hot wallet's single point of failure — the real difference, the risks, and when switching pays off.
A social recovery wallet lets you regain crypto access without a seed phrase — trusted guardians and a smart contract with a time-delay confirm it instead. How it works, who it suits, and the risks.
A multisig wallet needs several signatures instead of one to move funds. Here's a step-by-step guide to moving from a single-key cold wallet to multisig, common mistakes, and when to skip it.
Quantum computers can't crack a Bitcoin wallet today, but standards bodies are already building post-quantum defenses. Here's what's genuinely at risk, what isn't, and what exchanger owners should do now.
