How often does this checklist need to be run — or is doing it once enough for good?
It's not a one-and-done action, because every item of risk on this list re-accumulates over time — you'll keep using new protocols and generating new approval records, Hardware Wallet vendors keep releasing new firmware and advisories, and team or DAO membership can keep changing too. In practice, running it at least quarterly is recommended; if you're an active DeFi user or manage a multisig team's funds, bump that up to monthly. Setting it as a fixed recurring reminder on your calendar works far better than just telling yourself "remember to do this," because the nature of this task is precisely that no external prompt will ever remind you it's time — the initiative has to come entirely from you.
Item one says to prioritize revoking approvals showing an "unlimited" amount, but if I genuinely need to use a protocol frequently, won't re-approving every single transaction after revoking be even more of a hassle?
This is a genuine trade-off, and you don't need to blanket-revoke every unlimited approval. For a protocol you've assessed as one you'll genuinely keep using frequently (say, a DEX you use every week), you can choose to keep the existing approval, or revoke it and re-approve with a concrete amount that's "sufficient but not unlimited" instead (for example, setting it to two or three times the amount you typically use in a single transaction, rather than no cap at all) — that way, even if this approval gets triggered for some reason in the future, the maximum loss is bounded within a predictable range, rather than your entire wallet balance. The point of this checklist isn't to make you stop using DeFi protocols entirely — it's to keep you clearly aware of how much spending authority you've currently granted to whom, and to make that trade-off actively yourself, rather than letting approvals accumulate indefinitely while you remain completely unaware of it.
If I discover my Seed Phrase was once screenshotted, but I've since confirmed it was deleted and haven't noticed any asset irregularities, can I conclude it wasn't actually exposed and skip the hassle of setting up a new wallet?
Using "no irregularities so far" to judge whether it's safe isn't recommended, for reasons already broken down in another article on this site discussing seed-phrase-related risk: a leaked Seed Phrase isn't a probability question — it's a certainty question, where control of the assets has already transferred the moment it was seen, and it's simply that the attacker may choose to delay acting, potentially even waiting deliberately until the asset holdings grow larger. Once an electronic record like a screenshot or cloud note has existed, even after it's deleted, you can't rule out whether it was synced to a cloud backup before deletion, read by some other app on the device, or seen by anyone who had access to the device at some point — none of these channels leave a trace on your device that you're able to personally inspect. Given that the cost of setting up a new wallet and transferring assets is far lower than the loss from assets actually being drained, going through the extra effort to switch wallets in this kind of situation is a relatively cheap, conservative move.
If I can't finish this checklist in one sitting (say, I discover my Hardware Wallet firmware has an update, but it needs more time to complete), how should I plan around that?
You can split the checklist into independent sub-tasks and handle them separately — there's no need to insist on finishing every item in one sitting. What matters is that each item eventually gets addressed, not abandoning the whole checklist midway just because you couldn't finish it all at once. In practice, you can complete the items that don't require waiting first (revoking approvals, checking your Seed Phrase's storage condition, reviewing the multisig signer list), and for items that need more time (backing up data before a firmware update, or a discussion that needs coordinating a time with other signers), set a specific completion deadline separately and track it on your calendar, rather than leaving it indefinitely pending. The whole point of a checklist is turning "things you should do" into "concrete, actionable, trackable" tasks — as long as you preserve that spirit of conversion, splitting it across several sessions works just as well.
This site has already broken down the risk mechanics behind concepts like seed phrases, Approval Phishing, and multi-signature wallets individually, but there's a gap between knowing the mechanics and actually sitting down to clean things up — the step of "which site do I actually open today, which button do I actually click." This article won't repeat the underlying principles; it just gives you a checklist you can follow directly. Set aside 30 minutes, work through the list from top to bottom, and clear out old approvals and old settings that are still active risks even though you may have forgotten they exist.
Open an approval management tool (either a blockchain explorer's built-in approval lookup page, or a dedicated approval revocation service), connect every wallet address you actively use, and go through the list one by one. Prioritize two categories: approvals showing an "unlimited" amount, and approvals whose last interaction was more than six months ago — these two categories both hit "highest risk" and "you probably don't need this anymore." For protocols you're still actively using, decide whether to keep the approval or revoke it and re-approve with a lower limit. If your wallet has activity across multiple chains, remember to check each chain separately, since approval records don't sync across chains.
Open wherever your Seed Phrase is stored (paper, a metal engraving plate, or other physical medium) and confirm three things: whether the content is still clearly legible (paper is prone to fading or damage from time and moisture), whether the storage location is still secure (has it ever been moved somewhere you're now not entirely sure of, due to a move or renovation), and whether it was ever recorded electronically in any form (a screenshot, cloud note, or chat message) — if it ever was, even if since deleted, you should treat the seed phrase as potentially compromised and consider setting up a brand-new wallet and transferring your assets. This step needs no tools at all; it's purely a physical check, but it's the kind of thing many people skip simply because "I never looked at it again after setting it up."
If you use a hardware wallet, open the device's official companion software and confirm the current firmware version is up to date, then go directly to the device vendor's official website or official security advisory page (don't get there through a search engine result or social media link — manually type the official URL yourself) and check whether there have been any recent security advisories related to your specific device model. The 2026 Coldcard hardware wallet incident — caused by a firmware integration error five years earlier that left Private Key randomness insufficient — is a concrete case: the problem existed for five years before it was discovered, and no user could have detected it early through their own operational habits alone; the only thing anyone could do was keep tracking the vendor's advisories and act promptly once an update was released. This step doesn't take much time, but because most people rarely check back on their hardware wallet after initial setup, it's one of the most easily neglected items on this list over the long run.
If you use a Multi-Signature Wallet (whether for personal asset management or a team's/DAO's funds), confirm the current signer list is still accurate — whether any member who's left, gone unreachable, or is no longer involved still retains signing authority. Also check whether signers use different brands or models of hardware wallets (avoiding a single vendor's vulnerability affecting every signer at once), and whether large transactions have a time lock in place, giving other signers a chance to notice something wrong and halt it before the transaction takes effect. If this is a team's or a DAO's funds, it's worth confirming any changes with the other signers together after completing the check, rather than one person unilaterally deciding whether an adjustment is needed.
Each item on this list isn't difficult on its own, but they all share one trait: the risk doesn't explode immediately just because "you didn't do it this time" — it quietly accumulates until it gets triggered at some point. That's exactly why most people know they should do this and still never actually get around to it. Putting it on your calendar with a fixed recurring interval (say, the first weekend of every quarter) is the key to actually making it happen, rather than staying stuck at "I know I should." Thirty minutes, compared to the time and money it would cost if something actually went wrong, is a good deal.