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Chapter 11 - Cyber Security (Preventive Measure (Cyber Security Incident…
Chapter 11 - Cyber Security
Impact Advancement in IT allows us to be more inter-connected
Easier access to information and data
More information are stored on computers and cloud
Preventive Measure
Cyber Security Incident Response Team (CSIRT)
To handle any major outage and response caused by cyber attack
Perform Forensic and recommendations to secure organisation prone to attack
Enhancement of infrastructure with protection
Eg, implementing Firewall & Anti-Virus solutions solutions
Internet Separation
Eg Singapore Govt decide to keep 2 separate networks, 1 for internet access one for internal sensitive access
Educating End Users
Use more secure password like alphanumeric min 8 char
Use 2FA - two factor authentication
Install anti-virus and end point protection
Good Governance and Policy
Establish Cyber Security Guidelines and Best practices
eg. No usage of unauthorized cloud storage,
eg. Mandatory regular change or password
eg. Blacklist and Whitelisting of authorised sites for important organisation
Why?
Steal Data and Technology
Disrupt
Terrorism
Ransom and Extortion
Political Agenda
How?
Brute Force Attack
Eg DDOS attack is Denial of Service attack, eg. UK Govt got DDOS in 2017
eg. Singapore Govt website got defaced in 2016
Ransomware
Eg. WannaCry in 2017 caused many computer to be out of action
Malware
Phishing sites
Eg DBS bank issued a warning in 2018 that their sites are being imitated
Internal Theft/culprit
Eg Bangladesh Central Bank Hack stole 1 Bn from Central Bank
How it impact?
Financial Loss
Loss of revenue as attack can cripple a company's infrastructure and casuing all operation to come to a halt
Loss of lives
Eg Hospital system being attack, no network, cannot dispense medicine or equipment stop working
Damage in properties
eg. Hacking can technically trigger a fire or flooding by tampering with the fire safety mechanism
Reputation
A company that has been hacked will loose reputation resulting in loss of trust by public or customers
Examples
Singhealth Cyber attack in Jul 2018 was state sponsored where hackers came into the hospital network and stole PM's data and 1M health record
Individual Protection
1) Use complex password eg alphanumeric 8 char
2) Change passwords every 6 months
3) Install Anti-Virus and Anti-Malware, update signature regularly
4) Don't unknown website
5) Don't share personal information online