B-Safe, using only 10 blocks, made for free users.
What is B-Safe? B-Safe is a phone security program for your phone. This version is the intruder script, there is another script for free users that will help you find your phone if you loose it.
Link to lost script: http://llamalab.com/automate/community/flows/5926
B-Safe ➕ For premium users is still being developed.