Fraud 101Oct 26, 2026
What is SaaS abuse? How attackers misuse cloud services
SaaS abuse turns legitimate notifications, shared files, and app permissions into attack paths. Learn how it works, what to look for, and how to prevent it.
Email securityfor Business Email Compromise; for vendor impersonation; with supplier trust signals; for payment-detail change attacks
SucuriLabs protects Microsoft 365 environments from BEC, vendor impersonation, invoice fraud, and payment-change attacks by analyzing email behavior, supplier trust signals, and financial-risk context before finance acts.
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Fraud now arrives through emails that look operationally normal.
Attackers no longer need obvious phishing tricks to create financial damage. A supplier email, invoice update, or new bank detail request can look legitimate while still exposing the business to fraud.
Supplier payment changes are hard to trust
Finance teams receive invoice updates, IBAN changes, and payment requests from vendors every week. When a supplier account is compromised or impersonated, the email can look normal enough to pass manual review.
Manual verification is inconsistent
Teams rely on memory, ad hoc calls, shared inboxes, and second-channel checks. Under workload pressure, controls are skipped, delayed, or applied inconsistently.
Generic email security misses financial context
Traditional email security is strong at spam, malware, and obvious phishing. But financial fraud often depends on supplier identity, payment details, communication history, and trust context.
Turn risky financial emails into verified trust decisions.
SucuriLabs analyzes supplier emails, extracts payment and invoice details, checks them against vendor trust intelligence, evaluates behavioral and contextual anomalies, and gives IT and finance clear evidence to quarantine, release, or escalate the message.
Analyze
Identify emails tied to invoices, supplier requests, payment details, and sensitive approvals.
Verify
Check supplier identity, sender behavior, payment details, and communication context.
Score
Assign a clear risk level with evidence that explains why the email needs attention.
Decide
Quarantine, release, or escalate the email without guesswork across finance and IT.
Check whether a supplier domain has compromised email accounts.
Enter a supplier's domain to see whether SucuriLabs has detected compromised accounts linked to it, how many were found, and when the latest compromise appeared.
We only show aggregate exposure signals. We do not reveal passwords or individual mailbox data.
What this checks
SucuriLabs searches for compromised-account exposure signals linked to the supplier domain you enter.
- Whether we have exposure signals for the domain
- How many compromised accounts were detected
- When the latest compromise appeared in our dataset
Built for the emails your team cannot afford to get wrong.
Vendor trust intelligence
Checks whether the supplier identity, sender, payment details, and communication context match expected patterns.
Review supplier changes with context instead of guesswork.
Financial-risk detection
Focuses on the email scenarios most likely to create financial loss: invoices, IBAN changes, payment requests, supplier impersonation, and compromised vendor behavior.
Prioritize the emails most likely to move money in the wrong direction.
Explainable review workflow
Gives IT and finance the evidence behind each decision, not just another alert.
Help teams act faster without weakening financial controls.
Microsoft 365 deployment
Connects through native Microsoft 365 APIs without MX record changes.
Deploy quickly without disrupting mail flow.
Protect against the email attacks that directly expose your business to financial loss.
IBAN and payment-detail changes
Detect suspicious changes to supplier bank details before finance updates payment information or processes a transfer.
Reduce the chance of sending funds to an attacker-controlled account.
Compromised supplier accounts
Identify risky emails sent from legitimate vendor domains when the supplier account itself may be compromised.
Catch fraud even when the sender domain looks real.
Invoice fraud
Flag invoices and payment instructions that do not match expected supplier, sender, or payment context.
Stop false invoices before they enter the payment workflow.
Business Email Compromise
Detect executive spoofing, account compromise, and payment pressure patterns before employees act.
Prevent urgent payment requests from bypassing review.
Vendor impersonation
Catch supplier lookalikes and impersonation attempts that bypass traditional phishing signals.
Protect procurement and accounts payable from convincing lookalike attacks.
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Designed around the workflows where fraud actually happens.
SucuriLabs is built for real supplier and payment workflows: shared finance inboxes, Microsoft 365 environments, invoice handling, payment-detail changes, and vendor communication that cannot be judged by generic phishing signals alone.
- Supplier sends new bank details
- Vendor account is compromised but the domain is legitimate
- Invoice arrives from a known supplier with changed payment information
- Executive or finance user receives a high-risk payment request
- Email contains no obvious phishing language, but vendor and payment context do not match
What the reviewer sees before anyone updates payment details
Email type
Supplier payment-detail change
Risk factors detected
- New IBAN not previously associated with supplier
- Sender behavior differs from past communication
- Payment request contains sensitive financial action
- Vendor trust context requires review
Recommended action
Quarantine
FAQ
Answers to common questions about deployment, workflow, category, and fit.
Find out where financial fraud can enter through your inbox.
Book a short fraud prevention review and we'll walk through how your team currently handles supplier emails, payment-detail changes, invoice fraud risk, and Microsoft 365 email security gaps.
- Supplier identity analyzed
- Payment changes flagged
- Risk scored with evidence
- Email routed for review
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