Practical checks for owners and small teams handling vendor emails, customer requests, and unfamiliar links — without hiring an IT department first.
Updated bank details for invoice #4471
Next step: Confirm by phone, using a number you already have, before paying anything.
Our bank details have changed. Please send payment for invoice #4471 ($8,240.00) to the new account below by end of day today to avoid a late fee…
Small businesses
Illustrative situations and practical next steps — not claims that every scam will be detected.
A familiar supplier asks you to use a new account.
Next stepPause the payment. Confirm the change using a phone number you already know.
A proposal link opens an unexpected sign-in page.
Next stepInspect the domain before entering credentials; open the service directly if unsure.
Someone claiming to be the owner asks for gift cards or a confidential transfer.
Next stepCheck the request through an established channel, even when the sender looks familiar.
Where it fits
What changes when you add Cluttersignal — compared with relying on your spam filter alone, and with the heavier tools you might add later.
| Nothing extraJust your mail provider’s spam filter | CluttersignalA second opinion in your browser | A full security stackManaged email security, device management, an IT provider | |
|---|---|---|---|
| Setup | None. | A few minutes per person: add it to the browser and start the trial. | An IT provider or admin, usually over days or weeks. |
| Cost | $0 — until one payment goes to the wrong account. | $4.99 per person a month, or $49.99 a year. 7-day free trial. | Per-user licences, often with minimums, plus someone to run them. |
| What it covers | Whatever the spam filter catches. | The email, text, link, or site in front of you, when you ask — right from your browser, in your webmail and on any site. | Company mailboxes before mail arrives, and the devices it manages. |
| What you see | Nothing. Each person decides alone. | A verdict, the reasons in plain words, and one next step. | Mostly quarantines and warning banners; the details go to the admin. |
| Blind spots | Anything that gets past the filter. | It only checks what you ask it to. No admin console, and it doesn’t block anything. | Texts, DMs, personal inboxes, and links shared outside company mail. |
Cluttersignal doesn’t replace managed security. It’s the step before it — and a check that stays useful after it.
Grows with you
Cluttersignal isn’t a stopgap you throw away. It’s the check at the moment of decision, and that moment doesn’t go away when you add more tools.
Just you
Cluttersignal is your second opinion on invoices, vendor emails, and links. No IT department, no setup project.
A small team
Each person adds it to their own browser. Everyone gets the same verdicts and the same next steps.
You bring in managed security
An IT provider adds email filtering and device management. That protects company mail before it arrives.
Cluttersignal still earns its place
It checks what those tools never see — texts, DMs, personal inboxes, links shared in chat — at the moment someone is about to click, pay, or sign in.
Each person adds the extension to their own browser — nothing to migrate, no new inbox to learn. It does not replace managed endpoint security or organization-wide email controls. Works in Chrome, Edge, and Firefox.
A check on your device looks at the text and the domain in front of you. Cloud analysis, on by default, adds live evidence. A clean result never proves a request is genuine — it means we found no warning signs.
Stay in control
Checks start on your device, and you can switch cloud analysis off any time. You don’t need to connect your inbox to use it. The extension needs a Clutterstrike account and Signal Pro — try it free for 7 days. How we handle your data
Schools, universities & public service
Managed deployment, administrator visibility, procurement and student privacy requirements need to be agreed before any rollout. Discuss a pilot
Not quite you?
02
A clear second opinion for everyday messages and websites, with reasons you can read and a next step you can take.
03
A second look at job offers, scholarship messages, marketplace deals, and unfamiliar sign-in links.
A second opinion on the email you’re reading, the link you were sent, or the page you’re on — with the reasons spelled out. 7-day free trial, then $4.99/month or $49.99/year.
Available forChromeEdgeFirefox
Best-effort screening, not a guarantee. Always verify unusual payment or password requests through a channel you already trust.