SECURITY
Computer security, also known as cybersecurity or IT security, is the protection of computer systems from the theft or damage to the hardware, software or the information on them, as well as from disruption or misdirection of the services they provide.
When talking about security we are refering to system reliability.
WHAT NEEDS TO BE PROTECTED?
- HADWARE: failures.
- SOFTWARE: virus, trojans…
- DATA: main element to protect. Important making security copies.
From what do we need protection?
- FROM PERSONS
- PASIVES: people that snoop, but don’t cause harm.- PEOPLE WHITHOUT PERMISION TRYING TO ACCESS SYSTEMS- HACKERS.
- ACTIVES: those who cause harm or modify data. – CRACKERS.- FORMER EMPLOYEES.
– HACKERS.
From what do we need protection?
- LOGIC THREADS
- INTENTIONAL:
– VIRUS.
– MALWARE.
– NON AUTHORIZED ACCESS TO OPERATING SISTEMS.
- SOFTWARE FAILURE: non intentional failures of software.
- PHISIC THREADS
- HARDWARE FAILURE
- NATURAL DISASTERS(earthquackes, floods…)
1.NETWORK SECURITY
– SECURITY MEASURES
- PREVENTION
- DETECTION
- RECOVERY
-VIRUS AND MALWARE
SECURITY MEASURES
- PREVENTION:
-Security in communications
-Access permission
– Passwords
-Updates
-SAI
- DETECTION:
-Antivirus
-Firewalls
-Anti-spyware
- RECOVERY: When something has gone wrong and we have to restore the sistem.
-Security data copies.
-Many processor computers.
-etc.
VIRUS AND MALWARE
- Virus: is a type of malicious software program («malware») that, when executed, replicates by reproducing itself (copying its own source code) or infecting other computer programs by modifying them.
- Malware: short for malicious software, is any software used to disrupt computer or mobile operations, gather sensitive information, gain access to private computer systems, or display unwanted advertising.(dialers, spam, spy programs…)
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