Fake Support Calls on Viber
Scammers use Viber calls and messages to impersonate bank or tech support agents, convincing victims to share one-time passwords, install remote-access tools, or transfer funds to 'secure' accounts.
Part of: Fake Tech Support Calls
Last reviewed: 1 June 2026
Viber's VoIP calling feature enables fraudsters to make calls that appear to originate from local numbers or even recognisable caller IDs in some configurations. This is exploited by support impersonation scammers who claim to be from the victim's bank, telecom provider, or a government agency.
The combination of a voice call — which feels more urgent and authoritative — with follow-up Viber messages containing links creates a multi-step attack that is more persuasive than either channel alone.
How this scam works on Viber
A Viber call arrives claiming to be from the victim's bank's fraud department, alerting them to suspicious activity on their account. The caller requests OTP codes 'to secure the account' or asks the victim to transfer funds to a 'safe account' while the fraud is investigated.
Following the call, a Viber message arrives containing a link to a remote-access tool or a fake bank verification portal, described as necessary to complete the security process. Victims who comply give attackers direct access to their devices or accounts.
Some variants target crypto users by impersonating exchange support teams, requesting seed phrases or private keys to 'verify wallet ownership' during an alleged account review.
Common red flags
- Unexpected Viber call from a number claiming to be your bank or tech provider
- Support agent requesting an OTP code you just received via SMS
- Instruction to transfer funds to a 'safe account' as a fraud-protection measure
- Follow-up Viber message with a remote-access tool link after a support call
- Support contact who knows some of your personal details but asks for additional verification
- Seed phrase or private key requested under the guise of account verification
How to protect yourself
- Hang up on any unexpected support call and contact your bank or provider through the official number on their website
- Your bank will never ask you to transfer funds to protect them or request your OTP
- Never install remote-access software at the direction of an unsolicited Viber contact
- No legitimate service ever requests a seed phrase — this is always a scam
- Call your bank back directly to verify whether any alert is genuine
How to report it
- Report the Viber number via the in-app block and report function
- Contact your bank's fraud team to report the impersonation attempt
- File a report with your national consumer protection or cybercrime authority
Frequently asked questions
The caller already knew my name and some account details — doesn't that prove they're real?
No — scammers often have partial personal information from data breaches, social media, or previous scam attempts, and use it specifically to sound credible. Genuine verification comes from you calling back on an independently sourced official number, not from what the caller already seems to know.
I gave my OTP code to a Viber caller claiming to be my bank — what do I do immediately?
Contact your bank through its official number right away to report the compromised code and ask them to secure your account, since an OTP given up in real time can enable an immediate unauthorised transaction. Check your account activity closely and change your online banking password as soon as possible.
Should I be suspicious just because the call came through Viber instead of a normal phone call?
Not automatically, but be aware that Viber's VoIP calling can make caller ID less reliable than a traditional phone network, so scammers use it partly for that reason. Verify any unexpected support call the same way regardless of which app or network it arrived through — hang up and call the organisation back on a known official number.
How can I verify a support call is genuine without hanging up?
Ask the caller for a case reference number, then independently look up the official contact number for the organisation and call back to verify. A genuine support agent will have no issue with this.