Page 53 - Cyber Safety C-8

quick

Fill in the blanks.
1. A computer virus that modifies system files and slows down processing is an example of
.

2. encrypts a user’s data and demands payment to restore access.
3. attacks overwhelm systems with excessive traffic, causing service disruption.

21 st
ANALYSE CASE Century #Critical Thinking
Skills

Read the situations below and write what action should be taken in each situation.
Situations
A message arrives from an unknown sender asking to install a new game using a link.

A classmate borrows a laptop and tries to disable the antivirus so that an online tool loads faster.
A pop-up appears saying that a computer is infected and claims that a special software must be
downloaded immediately.
A social media message asks for an OTP to confirm a fake prize reward.

Someone claims to be a customer care officer and asks for Aadhaar details.

Crimeware: Crimeware is a type of malware used by cybercriminals to make money by
stealing information, recording keystrokes, or using infected systems to launch attacks like
Denial of Service (DoS).

Encryption: A security method that converts data into a coded form so only authorised
users can read it.
Digital Envelope: A digital envelope is a secure message that includes the message itself
and the secret key, both encrypted for protection.

"Many students use WhatsApp to chat with friends and share photos and
documents. However, cybercriminals also target WhatsApp accounts to steal
personal information or money. Let us learn to secure our WhatsApp account."

Cyber Protection and Security Basics 51