Leave an unexpected file shut
Why a file you did not ask for is the part worth leaving alone.
Reading a message is harmless. A file clipped to it is the one part that can run a program.
So the question is never what it says. It is whether you were expecting it.
Key points
- A file is the part of a message that can run something
- A file you did not expect can stay shut
What to remember
- An unopened file has never harmed anybody.
- The test is not what it says. It is whether you expected it.
Try this
Look at any attachment in your inbox and ask one question: did I expect this? If not, leave it.
Practice: Leave an unexpected file shut. Your first lesson is free, with no account or card; the rest are part of a Lantern plan. Interactive lessons require JavaScript.