ChallengeBob
Is it really them? Know who you're talking to.
ChallengeBob is a simple identity verification app that protects you, your loved ones, and your business from social engineering scams. Verify the identity of callers and contacts using a secure, offline challenge and response system. No internet required. Simple enough for everyone.
Download free on iOS and Android.
What is ChallengeBob?
The challenge word: your secret verification layer
With advancements in technology, scammers and social engineers can impersonate people you trust to an alarming level. ChallengeBob proves, instantly, who you're really talking to.
Challenge & Response
Anyone who can't produce the correct word isn't who they say they are.
Simple enough for everyone
A challenge word works on a phone call, over text, or anywhere else. It even works offline.
Scales to any group
From a single household to an enterprise with thousands of employees, ChallengeBob scales challenge-word protection to any size.
Free to download
ChallengeBob is free for up to 3 pairings. We charge a small amount for more because I'm just one person building something I believe in, not a corporation harvesting your data.
Who it's for
Protection for everyone at risk
Social engineering doesn't discriminate. ChallengeBob protects anyone who communicates with others they need to trust.
Phone scams targeting older people are rising. A challenge word gives them an immediate, instinctive defence before sharing any information or sending money.
Set family-wide challenges to protect against grandparent scams, fake emergency calls, and impersonation of relatives.
CEO fraud and payment-redirect scams cost SMEs millions. Challenge words verify internal requests before money moves.
Standardise challenge-word protocols across departments to protect against urgent wire transfer fraud or credential sharing.
Protect carers and their clients from imposters claiming to represent offered services.
For anyone who values a private, low-friction layer of identity verification in their everyday communications.