How Android unlocking patterns could be made more secure

Users of Android devices can unlock the display by entering a pattern. This function is convenient and thus popular—however, less secure than locking with a PIN. An international research team thus recommends implementing a blocklist on Android devices that prohibits the 100 most popular patterns, which are thus the easiest to guess. Precisely how this needs to be created has been investigated by Philipp Markert from the Horst Görtz Institute for IT Security at Ruhr-Universität Bochum together with colleagues from The George Washington University and the United States Navy.

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