E-signature phishing abuses the one workflow almost every employee trusts without question: a document waiting for their signature. This guide trains staff to spot fake DocuSign and e-signature emails using the exact lure patterns providers are reporting in 2026.
Why this matters
DocuSign itself publishes dated safety alerts when it identifies active phishing campaigns abusing its brand, and the pattern in 2026 has shifted from crude fake-account emails to layered scams combining real workflow notifications with fake billing and support content. On 23 July 2026, DocuSign reported a campaign impersonating Intuit QuickBooks, sending fraudulent envelopes from lookalike addresses that prompt recipients to review unexpected invoices or remittance advice. On 5 February 2026, DocuSign flagged attackers using Docusign Maestro workflow notifications combined with fake Microsoft billing content to drive victims toward a fraudulent support phone number.
These are not one-off incidents. DocuSign maintains a running safety-alerts page specifically because its brand is a persistent target, and other reported campaigns in 2026 combine Docusign-branded account activation templates with fake PayPal charge notifications and fraudulent support numbers. The reason attackers keep coming back to e-signature platforms is simple: an email that says "a document is waiting for your signature" gets opened, and the workflow trains people to click through without much scrutiny.
What you will need
- A record of which e-signature platforms your organisation actually uses (DocuSign, Adobe Sign, PandaDoc or others).
- Two or three real examples of past e-signature emails your team has legitimately received, to use as a comparison baseline.
- The IT or security contact staff should forward suspicious emails to.
- Cyber Aware phishing simulations access to run a realistic e-signature test.
- A named finance or accounts payable contact, since many of these scams end in a fake invoice or payment request.
Step 1: teach staff to check the sender domain, not the display name
Fake e-signature emails almost always spoof the display name ("DocuSign", "Adobe Sign") while the actual sending address is a lookalike domain or a free webmail account. Train staff to check the full email address, not just the name shown in their inbox.
DocuSign's real notification emails come from its own verified domains. Any email claiming to be from DocuSign but sent from a domain that is not DocuSign's own, or from a generic address with extra words or characters, is the fake. The July 2026 QuickBooks-impersonation campaign specifically used lookalike email addresses rather than a compromised real account, which is the more common pattern.
Common mistake: staff trust the sender name shown in their email client and never expand it to see the actual address, which is exactly what these campaigns are built around.
Step 2: train staff to expect the actual document type they signed up for
A genuine e-signature notification references a document your organisation is actually expecting: a contract, an HR form, a vendor agreement. Fake notifications default to urgent financial content instead: an unexpected invoice, a remittance advice, a subscription renewal, or a suspicious charge that needs "reviewing."
Teach staff the pause-and-check rule: if the email references a document, invoice or charge you were not expecting, do not click through the email. Log into the e-signature platform directly through a bookmark or typed URL and check for pending documents there instead.
Expected outcome: staff stop clicking embedded links in unexpected e-signature emails and instead verify through a separate, trusted channel.
Step 3: teach staff to recognise the fake-support-number pattern
One of the DocuSign-reported campaigns in 2026 combined a fake billing notification with a phone number to call for "support" - a classic pivot from email phishing to voice-based social engineering once the victim is already alarmed about an unexpected charge. Once someone calls that number, the scammer talks them through providing payment details or remote access.
Train staff never to call a phone number provided inside a suspicious email. If a charge or invoice looks wrong, they should look up the vendor's support number independently (from the vendor's own website, not the email) or ask their finance team to verify first.
Common mistake: treating a phone number in an email as more trustworthy than a link, when it is exactly the same kind of unverified contact information.
Step 4: connect e-signature awareness to your invoice fraud controls
Because several 2026 DocuSign-themed campaigns are really invoice fraud wearing an e-signature costume, staff who handle payments need the same verification habits as anyone else in accounts payable. Any request that changes a payment amount, bank account, or vendor detail - even one that arrives through what looks like a signed document workflow - needs a second-channel check before money moves.
Build this into your existing invoice verification process rather than treating e-signature phishing as a separate category: the delivery mechanism changes, but the fraud is the same pattern of urgency plus a payment change.
Expected outcome: finance staff apply the same callback-verification discipline to a "signed document" trigger as they would to a direct invoice email.
Step 5: run a realistic simulation using the actual lure patterns
Generic phishing training that only covers obvious fake-account emails will not prepare staff for the layered campaigns DocuSign has reported in 2026 - ones that combine a real-looking workflow notification with a separate fake billing element. Build simulations that mirror this two-step structure: an e-signature-style notification that leads to a fake invoice or renewal page.
Cyber Aware phishing simulations include templates built around this kind of impersonation, and anyone who clicks is automatically enrolled in a short, targeted follow-up lesson rather than a generic phishing refresher.
Common mistake: running the same phishing test every quarter. Attackers update their lure content faster than that; simulation content should track the patterns vendors are actively reporting.
Step 6: give staff one clear reporting action
When staff aren't sure whether an e-signature email is real, they need exactly one obvious action: forward it to IT or security, or use a report-phishing button if your organisation has one, rather than deleting it, ignoring it, or clicking through to "check."
Human risk reporting tracks who reports suspicious emails versus who clicks, which gives you a concrete way to see whether this training is actually changing behaviour rather than just being watched once and forgotten.
Expected outcome: a measurable rise in reported suspicious e-signature emails and a corresponding drop in click-throughs over successive simulation rounds.
Troubleshooting
Staff say they cannot tell a real DocuSign email from a fake one. Show them a genuine example from your own organisation side by side with a documented fake from DocuSign's safety alerts page, and point out the sender domain difference specifically - that is the one detail that does not require guesswork.
A staff member already clicked a link before reporting. Have them report immediately rather than trying to fix it themselves. If they entered any credentials or payment details, treat it as a live incident: reset the relevant password and alert your security contact the same day.
The finance team is confused about who verifies e-signature-linked invoices. Name one person or role responsible for verifying any payment change that arrives through a signed-document workflow, and give them explicit authority to hold the payment until verified.
Tools and resources
- Cyber Aware training
- Cyber Aware phishing simulations
- Cyber Aware human risk reporting
- DocuSign safety alerts
FAQ
Are DocuSign phishing emails common in 2026? Yes. DocuSign publishes dated safety alerts confirming active campaigns, including a July 2026 QuickBooks-impersonation scam and a February 2026 campaign combining workflow notifications with fake Microsoft billing content.
How can staff tell a fake DocuSign email from a real one? Check the full sender email address rather than the display name - fake campaigns use lookalike domains or generic addresses, while genuine notifications come from DocuSign's own verified domains.
What should staff do if an e-signature email references an unexpected invoice? Do not click the embedded link or call any phone number in the email. Log into the e-signature platform directly through a bookmark or typed URL, or verify with finance before acting.
Is e-signature phishing the same as invoice fraud? Often, yes. Several 2026 DocuSign-themed campaigns use a signed-document workflow purely as a wrapper around a fake invoice, remittance advice or billing dispute.
Should staff call the phone number provided in a suspicious e-signature email? No. Fake e-signature emails increasingly include a fraudulent support number designed to move the scam from email to a live phone call. Look up any vendor's support number independently instead.
One last thing
The detail that separates a real e-signature notification from a fake one is almost never the design or the logo - both look convincing. It is the sender's actual domain, which takes five seconds to check and catches nearly every version of this scam DocuSign has reported in 2026.