Page 4 - My FlipBook

CHAPTER 1

WHITE, BLACK,

AND GRAY HATS

Computers are an important part of our lives. They
are used in schools. Stores and restaurants have them

too. Pilots use them to fly planes. Some surgeons use

computers to operate. Businesses rely on them for
communication. People depend on computers. But these

machines have weaknesses. They can be hackedhacked.

Big news broke in 2016. Yahoo is a major search engine. It

is also an email provider. The company had been hacked.

This had happened three years earlier. People were just
finding out.

Yahoo had three billion users. All were affected. Hackers

stole names and email addresses. Passwords were also

taken.

This hack showed that even big tech companies are at
risk. Their users are too. All hackers look for one thing.

They want to find holes in a computer system. These

holes let them break in.

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