[Undertoad]

Originally Posted by Undertoad

...Is my phone screen unlock pattern too obvious?... it's not that weird, maybe it's not the "1234" of screen unlock patterns, but maybe it's the "2580"?... surely the "big L" or "big Z" is a more common unlock pattern than mine... are screen unlock swipe patterns supposed to be, like, secure enough?...

Answer to that last question: no

http://arstechnica.com/security/2015...lock-patterns/

The research is in its infancy since Android lock Patterns (ALPs) are so new and the number of collected real-world-patterns is comparatively miniscule. Still, the predictability suggests the patterns could one day be subject to the same sorts of intensive attacks that regularly visit passwords.

Marte Løge, a 2015 graduate of the Norwegian University of Science and Technology, recently collected and analyzed almost 4,000 ALPs as part of her master's thesis. She found that a large percentage of them—44 percent—started in the top left-most node of the screen. A full 77 percent of them started in one of the four corners. The average number of nodes was about five, meaning there were fewer than 9,000 possible pattern combinations. A significant percentage of patterns had just four nodes, shrinking the pool of available combinations to 1,624. More often than not, patterns moved from left to right and top to bottom, another factor that makes guessing easier.