Flashcards
Data Level Protection
Cards in this deck (22)
- 1What is device hardening?The process of making devices, systems and networks more secure from hackers.
- 2What are different ways to harden your device?Firewalls, anti-virus and encryption
Restricting user privileges
Removing non-essential programs
Applying security patches (updates) - 3How do firewalls work?Uses a set of rules that look at network packets to filter and reject anything that looks suspicious.
- 4Why are firewalls used?To protect their local area network (LAN) from the dangers posed by an external network, like the internet.
A firewall may also be used to restrict access to websites by businesses or governments. - 5Are firewalls hardware, software, or both?Both
- 6What happens when a virus is detected by an anti-virus?When a virus is detected, it is sent to the anti-virus provider.
- 7What is the purpose of anti-virus software?Anti-virus software is designed to detect malware (malicious software) like viruses, worms, trojans and spyware.
- 8Why does anti-virus software need to be updated regularly?Viruses can morph to avoid detcetion.
- 9How do anti-virus companies recognise viruses?They have have a list of known viruses. This is called a database.
- 10What are some advantages of anti-virus software?Finds and removes files containing malicious code
Is often free to download - 11What are some disadvantages of anti-virus software?Needs to be continually updated so it can detect new viruses
Because it is constantly scanning files, it can slow down a computer or network
The most effective software can be expensive
If a virus is unknown, it won't be picked up - 12What is encryption?The process of encoding data or a message so that it cannot be understood by anyone other than its intended recipient.
- 13The data or message is encrypted using an...?Encryption algorithm.
- 14What is an encryption key?A piece of information - usually random characters - used by the software algorithm to encrypt data or a message into a form which is unreadable (encryption) and allow the data or message to be made readable again (decryption).
- 15How does encryption work?It uses an algorithm to scramble the text
The data then becomes unreadable
It will need a key – that both uses have to unscramble (read the data) - 16What does obscuring data entry prevent?Shoulder surfing
- 17What is obscuring data entry?When sensitive information, like a password is entered, the characters are masked with dots or asterisks (*).
- 18What is auto-complete?A useful feature for recognising familiar inputs (like bank details) and entering them. But it can also pose a security risk.
- 19What is a disadvantage of 'stay logged in'?Can leave account vulnerable to attack
- 20What is an advantage of 'stay logged in'?Saves time
- 21What is captcha?It stops bots auto filling in the data.
- 22What shows that a website is safe?HTTPS / Padlock. It uses SSL (Secure Socket Layer) shows the user the site is safe to put data into
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- GCSE IT Flashcards on Data Level Protection, created by Brooke Clarke on 12/01/2023.
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- Brooke Clarke
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