nTrust is a fraud prevention software developed and operated by the National Cyber Security Association. This free software helps detect unsafe signs by checking phone numbers, website addresses (links), account numbers, applications, and QR codes. It offers features such as blocking fraudulent calls and checking phone numbers, web addresses, account numbers, and applications for potential threats.

nTrust provides the following functions:

• Call blocking from known fraudulent numbers
• Warning for calls from advertising or nuisance numbers
• Phone number verification for fraud or nuisance numbers
• Web link verification for scam sites, malicious code-containing sites, or fake websites
• Account number verification for fraudulent accounts
• App checking to identify fake apps or malicious content