JatzoOnline Security
ONLINE SECURITY, STARTING WITH EMAIL

Not sure about an email? Jatzo tells you what it really is.

The unexpected invoice. The strange login request. The message that looks right but feels wrong. Load it into Jatzo and get a clear risk rating, an explanation in plain English and a practical next step. Built for everyone who gets email, not just security teams.

Start with your beta invitationSee how it works
5 free checks each monthRaw email not kept in case historyEvery result explained
JATZO ANALYSISJZ-2026-EXAMPLE-C
34/100
Suspicious

The message contains signals worth checking before you click, reply or share information.

+14Unrelated action link
+10Urgency language detected
+10Reply-To mismatch
YOUR EMAIL STAYS YOURS

We do not keep the email you check.

Jatzo reads the message and its attachments to run the analysis, then releases them. The raw email, its contents and its attachments are not saved in your history. What is kept is the subject line, the score, the short list of findings and a few counts, such as how many links there were, so you can recognise a check later. Links and senders are kept only as keyed fingerprints that cannot be read back, which is how Jatzo notices the same campaign returning.

  • No raw email or attachment content stored
  • The message itself is never stored, so nobody is shown it. In a business team, the owner and administrators see each check's subject line, score and findings
  • Attachments are opened only inside an isolated worker, never run
  • No third-party advertising trackers
Read the privacy notice

Add the email

Paste the original text or upload the file. Our step by step guide shows you exactly where to find it.

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See the risk

A clear rating from Low risk to Very high risk, with the reasons that produced it.

Know what to do

Plain advice on what to check before you click, reply or pay.

WHAT ACTUALLY LANDS IN AN INBOX

The dangerous ones do not look dangerous.

A message designed to fool you is built to look ordinary. These are the four that cost people and small businesses the most, and every one of them arrives looking like routine admin.

The invoice you were half expectingA bill arrives for work that sounds plausible. Paying it sends your money to someone else entirely.
The login request that creates panicSomeone has accessed your account, sign in to secure it. The sign-in page is theirs, and now so is your password.
The parcel that needs a small feeA delivery is held pending a tiny charge. The amount is trivial, which is the point. What they want is the card number.
The supplier who changed bank detailsA familiar contact sends new account details before an invoice is due. This one quietly takes the largest sums.
WHY PAUSING TO CHECK MATTERS

Phishing is an everyday business risk.

38%

of UK businesses reported phishing attacks in the previous 12 months.

43%

reported at least one cyber security breach or attack of any kind.

63%

of large UK businesses reported phishing attacks.

Source: UK Government Cyber Security Breaches Survey 2025/2026, section 4.2. Survey estimates of identified attacks, including unsuccessful attempts; these are not the percentage that lost money, nor a measure of Jatzo’s effectiveness.

See how real attacks unfold
AN EXAMPLE RESULT

Simple on the surface. As deep as you need underneath.

An example of what Jatzo gives back. Anyone can read the top line. Anyone who wants the underlying evidence can open it.

Clear words. Useful evidence. Illustration of the Jatzo goat turning a tangle into clear lines.
66/100High risk
WHAT IS THIS EMAIL TRYING TO DO?
Get you to sign in or reveal account accessWritten in plain English, before any technical detail.
For the technical readerAuthentication, identity and destination evidence
Identity and impersonationCompares From, Reply-To, Return-Path and sending domains, then checks verified brand families, lookalike domains, confusable characters, machine generated infrastructure and a 1,000+ identity watchlist.
Intent and threat patternsIdentifies what the message is trying to achieve, including credential theft, payment diversion, business email compromise, extortion, delivery lures, fake support and device code abuse.
Links and attachmentsSeparates real destinations from tracking noise and statically profiles supported files for extension mismatches, archives, document activity, HTML smuggling and embedded URLs, without ever executing an attachment.
Authentication evidenceSPF, DKIM and DMARC results are read as reported claims, not proof. A reported pass cannot cancel independent warning signs, and a check that could not run is recorded as uncertainty rather than safety.
Scoring you can auditEvery point on the score traces back to a named finding. Overlapping detections are grouped so they cannot simply inflate the total, and unwanted mail is scored separately from dangerous mail.
Campaign contextRelated reports can be connected through keyed sender, subject pattern and destination fingerprints inside your own account or business workspace, without exposing anyone else's message.

No automated email security tool can guarantee a correct verdict. Jatzo keeps each signal explainable and treats weaker identity clues as supporting context rather than proof.

Illustration of a person using a computer at home
JATZO LEARNING

Spot it yourself, next time.

Short practical lessons built around real situations, with feedback that explains every answer. Start with the fundamentals, then move on to the workplace, where the money is.

See the coursesTry lesson one free

The first lesson is free. Every module is included with Business Pro.

CHECK WHAT YOU NEED

Different questions. One clear answer.

Phishing email analyserCheck identity, authentication, links and social engineering signals.Scam email checkerGet a clear result when an unexpected email does not feel right.Email header analyserUnderstand SPF, DKIM, DMARC and sender evidence in context.
PRIVATE BETA

Jatzo is in private beta.

Accounts are by invitation for now. Check the next message that makes you pause.

Start with your beta invitation