padlock icon
Browser safety symbol
A padlock icon appears in web browsers to indicate a secure, encrypted connection between the user and a website.
Its presence in the address bar signals that data transmitted—passwords, credit card numbers—is protected from interception.
The icon has become visual shorthand for online security, though it only confirms encryption, not that the site itself is trustworthy: Always check for the padlock icon before entering payment information.
- securityProtection from threat
- secure connectionEncrypted communication channel
- passwordAuthentication string
- encryptionConverting data into code
- secureProtected from harm
protection · data protection · click · address bar · browser · https · safe · key · closed · privacy · authentication · login · online banking · shield · metal · latch · vault · keyhole
- trust signalscredentials, trustworthiness, reputation, credibility, reliability
- secure messagingSignal, WhatsApp, Telegram, encryption, end-to-end encryption