Information on a device is protected by passwords, updates and backups. Tricky messages try to get around those locks, so a technician learns to stop, think and tell a grown-up.
19 blocks · 4 graded
17 blocks · 4 graded
19 blocks · 5 graded
18 blocks · 4 graded
15 blocks · 4 graded
12 blocks · 2 graded
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