"the padlock means the site is safe"

lore

securityweb dev

The padlock proves the connection is encrypted to whoever holds that domain - it says nothing about who they are. Phishing sites get certificates in minutes, for free.

By the late 2010s most phishing pages served valid HTTPS; the FBI issued a public advisory in 2019 warning that the lock icon is not a trust signal. Browsers have been quietly demoting the padlock since.

Disputed / commonly mistold A popular version of this story is inaccurate - see the note above.

Also known as: padlock myth, green lock

Sources

  • FBI IC3 PSA I-061019-PSA - HTTPS phishing (2019)
  • APWG Phishing Activity Trends Reports - HTTPS share of phishing sites

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