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Introduction to Security

Introduction to Security. Dr. John P. Abraham Professor UTPA. Terminology. Risk The likelihood of an asset being stolen. Security Measures to Prevent theft Vulnerability Weakness in the security that allows a threat agent to exploit that weakness to get to the asset.

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Introduction to Security

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  1. Introduction to Security Dr. John P. Abraham Professor UTPA

  2. Terminology • Risk • The likelihood of an asset being stolen. • Security • Measures to Prevent theft • Vulnerability • Weakness in the security that allows a threat agent to exploit that weakness to get to the asset. • Identity theft and cyberterrorism are growing concerns

  3. Attackers • Hackers – Computer savvy persons innocently or purposely, with or without malicious intent gaining access to other peoples computers. • Script kiddies – intention is to create damage. Use already available scripts. • Spies – Someone who is paid to steal information. • Employees • Cybercriminals - organized group, mostly in eastern european countries.

  4. Steps of attacks • Probe for information • Type of hardware, software, version, user id, ping, ports scanning • Penetrate defenses – eg guessing passwords • Modify security settings – allowing re-entrance (privilege escalation tools) • Paralyze network and devices – modifying, deleting, copying files, crashing computer, etc.

  5. Defense against attacks • Layers of security • Limiting access • Diverse types of protection for each layer • Obscurity (unavailability to the public) of details of a system.

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