Binary Lock Circle black filled icon
Padlock with keyhole beside rows of binary digits inside a circle outline
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About the Binary Lock Circle black filled icon
A closed padlock with a rounded shackle and a keyhole sits beside three rows of binary digits (01011, 110, 01, 11) cascading down the left, all held inside a thin circular frame. Together they read as encrypted data, cryptography and protected credentials. Use it on cybersecurity landing pages, VPN and password manager apps, developer documentation about hashing, data privacy settings screens, and IT security slide decks.
The padlock body is a wide rounded rectangle balanced against the staggered number rows, so the composition fills the circle evenly without crowding. It pairs naturally with shield, key, fingerprint and firewall icons in the same circular outline family. At small sizes the digits blur together, so keep it at 48 px or larger where the binary detail carries the meaning.
This is the solid black filled version of the binary lock circle icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
Get it free as an SVG vector or transparent PNG (16-512px), copy the SVG code, or restyle it in the free online editor — recolor any part, add gold, neon or gradient effects, animate it, or export EPS, PDF and DXF.
Free for personal and commercial use with attribution.
