Signal has earned a strong reputation as one of the most secure messaging apps available. Its end-to-end encryption and minimal data collection make it a trusted choice for journalists, activists, and privacy-conscious users. Unfortunately, those same features attract scammers who exploit the platform's privacy protections to run fraud schemes that are difficult to trace. The FTC reports that messaging-app fraud has increased significantly year-over-year, with encrypted platforms becoming a preferred channel for organized scam operations.

Why Scammers Target Signal Users

Signal's design philosophy centers on user privacy, which creates an environment scammers deliberately seek out:

• End-to-end encryption means no third party, including Signal itself, can read message contents or flag suspicious activity
• Disappearing messages automatically destroy evidence of scam conversations
• Minimal metadata collection limits what law enforcement can subpoena
• No username system means accounts are tied only to phone numbers, which can be obtained through VoIP services or prepaid SIMs
• Trusted reputation gives scammers credibility when they ask targets to "move to Signal for privacy"

Scammers on dating apps, social media, and other platforms frequently try to shift conversations to Signal early on. This is a deliberate tactic to escape platform moderation and content monitoring systems.

Common Signal App Scams

Wrong Number Scams

The most widely reported Signal scam begins with a seemingly innocent message: "Hey, are we still on for dinner tonight?" or "Hi Sarah, this is David from the conference." When you reply to let them know they have the wrong person, the scammer acts surprised but friendly, apologizing and then continuing the conversation.

This is not accidental. Scammers send these messages in bulk, and anyone who responds becomes a target. Over days or weeks of casual chatting, the scammer builds rapport before introducing a fraudulent investment opportunity, typically involving cryptocurrency. This is a variant of the pig butchering scam that has cost victims billions of dollars globally.

Investment and Crypto Fraud

Scammers posing as financial advisors or successful traders contact Signal users with promises of high returns and minimal risk. They may share screenshots of fabricated portfolio gains, invite you to join "exclusive" trading groups, or guide you through setting up accounts on fraudulent investment platforms.

These fake platforms display impressive returns on your initial deposit, encouraging you to invest more. When you attempt to withdraw, the platform demands additional "fees" or "taxes," and eventually the scammer and the platform disappear entirely.

Romance Scams

Romance scams on Signal follow a familiar pattern. The scammer establishes an emotional connection over weeks or months, sharing personal stories, photos (often stolen from real social media profiles), and expressions of affection. They consistently avoid video calls and in-person meetings, always with plausible excuses.

Eventually, they introduce a financial element: a medical emergency, a business opportunity, travel costs to finally meet you, or an investment they want you to try. Payments are requested through cryptocurrency, wire transfers, or gift cards, all of which are extremely difficult to recover.

Account Hijacking

Attackers trick Signal users into sharing verification codes or linking a malicious device to their account. A phishing message may claim that Signal requires you to "re-verify" your account, directing you to a page that captures your verification code. In early 2026, security researchers documented campaigns targeting Signal and WhatsApp users through linked-device phishing, where victims are tricked into scanning a QR code that grants the attacker full account access. The Anti-Phishing Working Group tracks these evolving phishing techniques across messaging platforms.

Impersonation of Trusted Contacts

Using information from social media or data breaches (check if your data has been exposed at Have I Been Pwned), scammers create Signal accounts that appear to belong to your friends, family, or colleagues. They use the same profile photo and display name, then reach out with urgent requests for money.

Red Flags on Signal

Stay alert for these warning signs in any Signal conversation:

• Unsolicited messages from unknown numbers, especially those that seem "accidentally" sent to you
• Quick emotional escalation from a stranger who becomes unusually friendly or romantic within days
• Investment talk from someone you have never met in person
• Refusal to video call or meet face-to-face, with repeated excuses
• Requests for money through cryptocurrency, wire transfers, or gift cards
• Pressure to act quickly before you have time to think or consult others
• Requests to re-verify your Signal account through external links or QR codes
• Moving from another platform to Signal very early in the relationship

How to Protect Yourself

Set a Signal PIN

Go to Settings > Account > Signal PIN and create a strong PIN. This prevents unauthorized registration of your phone number on another device and protects your account data.

Enable Registration Lock

Under Settings > Account > Registration Lock, turn this feature on. It requires your Signal PIN to register your number on a new device, blocking account hijacking attempts.

Review Linked Devices

Regularly check Settings > Linked Devices and remove any device you do not recognize. If you see an unfamiliar device, remove it immediately and change your PIN.

Do Not Respond to Unknown Contacts

The safest response to a suspicious message from an unknown number is no response at all. Block and report the number immediately. Engaging, even to say "wrong number," signals to scammers that your number is active.

Verify Identities Independently

If someone claiming to be a friend or family member contacts you on Signal with an unusual request, call them on their known phone number or contact them through a different platform to verify.

Never Send Money to Online-Only Contacts

No matter how compelling the story or how strong the emotional connection, never send money or cryptocurrency to someone you have not met in person and verified through independent means.

What to Do If You Have Been Targeted

1. Stop all communication and do not send additional funds
2. Block and report the contact within Signal
3. Screenshot everything before messages disappear, including phone number, display name, and conversation content
4. Report to the FTC and the FBI's IC3
5. Contact your bank immediately if you shared financial information or sent payments

Related Resources

Signal remains one of the most secure messaging apps available. Its privacy features are a genuine benefit for users who need secure communication. But privacy cuts both ways, and the same features that protect your conversations also protect scammers. Staying skeptical of unsolicited contact and never sending money to unverified individuals are your strongest defenses.