Security Reliability What is security n Security n
Security & Reliability
What is security? n Security n n protection of a person, building, organization or country against threats such as crime or attacks by foreign countries [ from cambridge international dic. ] Security in CSE field?
What are threats? n System Hacking n n n n Scanning Gaining access Escalating privilege Pilfering Covering tracks Creating back doors Denial of service Password Cracking n Network Hacking n n n n Spoofing Session hijacking Sniffing Man-in-the-Middle Exploring back doors Scanning through firewalls Denial of service
What are threats? n Threats n n n n Erase hard disk completely Store illegal or espionage material Access confidential information Broadcast your confidential letters or materials Upload kitty porn and then call local authorities Send nasty material to other people. Threaten someone from YOUR computer In short, make your life a living hell
Example
Anti-Hacking Techniques & Tools n Tips to Protect Yourself n n n n Use difficult-to-guess passwds, community names Limit FTP usage Log everything Have backups Don't put data where unnecessary Stay current with patches Use a secure module (cryptography)
Anti-Hacking Techniques & Tools n Tools to defend against hackers n Firewalls n n n Application Gateways, Packet Filtering Hybrid Systems Intrusion Detection Systems Patches for known vulnerabilities
Schedule n How to use security tools( 2 nd day ) n n Packet sniffer Intrusion Detection System (snort) Firewall Cryptography( 3 rd day )
- Slides: 8