You Will Learn How To
- Analyse your exposure to security threats and protect your organisation's systems and data
- Reduce your susceptibility to an attack by deploying firewalls and data encryption
- Assess alternative user and host authentication mechanisms
- Manage risks emanating from inside the organisation and from the Internet
- Protect network users from hostile applications and viruses
- Identify the security risks that need to be addressed within your organisation
Course Benefits
In today's Internet-dependent business environment, organisations must link their systems across enterprise-wide and virtual private networks, as well as connect mobile users. Each connection increases exposure to customers, competitors and hackers, magnifying vulnerability to attack. In this course, you learn how to analyse risks to your networks and the steps needed to select and deploy the appropriate countermeasures to reduce your exposure to network threats.
Who Should Attend
Those who require the fundamental skills to develop and implement security schemes designed to protect their organisation's information from threats.
Workshop Course
Exercises and workshops provide you with experience analysing system and network security. Activities include:
- Cracking passwords using rainbow tables
- Scanning systems with Microsoft Baseline Security Analyser (MBSA)
- Restricting computer access with biometrics
- Preventing unwanted network access with a personal firewall
- Encrypting and signing important data
- Discovering security best practices
Course Content
Building a Secure Organisation
Real threats that impact security
- Hackers inside and out
- Eavesdropping
- Spoofing
- Sniffing
- Trojan horses
- Viruses
- Wiretaps
A security policy: the foundation of your protection
- Defining your information assurance objectives
- Assessing your exposure
A Cryptography Primer
Securing data with symmetric encryption
- Choosing your algorithm: DES, AES, RC4 and others
- Assessing key length and key distribution
Solving key distribution issues with asymmetric encryption
- Generating keys
- Encrypting with RSA
- PGP and GnuPG
- Evaluating Web of Trust and PKI
Ensuring integrity with hashes
- Hashing with MD5 and SHA
- Protecting data in transit
- Building the digital signature
Verifying User and Host Identity
Assessing traditional static password schemes
- Creating a good quality password policy to prevent password guessing and cracking
- Protecting against social engineering attacks
- Encrypting passwords to mitigate the impact of password sniffing
Evaluating strong authentication methods
- Challenge-response to prevent man-in-the-middle attacks
- Preventing password replay using one-time and tokenised passwords
- Employing biometrics as part of two-factor authentication
Authenticating hosts
- Shortcomings of IP addresses
- Address-spoofing issues and countermeasures
- Solutions for wireless networks
Preventing System Intrusions
Discovering system vulnerabilities
- Searching for operating system holes
- Discovering file permission issues
- Limiting access via physical security
Encrypting files for confidentiality
- Encryption with application-specific tools
- Recovering encrypted data
Hardening the operating system
- Locking down user accounts
- Securing administrator's permissions
- Protecting against viruses
Guarding against Network Intrusions
Scanning for vulnerabilities
- Restricting access to critical services
- Preventing buffer overflows
Reducing denial-of-service (DoS) attacks
- Securing DNS
- Limiting the impact of common attacks
Deploying firewalls to control network traffic
- Analysing shortcomings of stateless packet filters
- Contrasting stateful packet filters with application proxies
- Preventing intrusions with filters
Building network firewalls
- Evaluating firewall features
- Selecting an architecture and a personal firewall
Ensuring Network Confidentiality
Threats from the LAN
- Sniffing the network
- Mitigating threats from connected hosts
- Partitioning the network to prevent data leakage
- Identifying wireless LAN vulnerabilities
Confidentiality on external connections
- Ensuring confidentiality with encryption
- Securing data-link layer with PPTP and L2TP
- Middleware information assurance with SSL and TLS
- Deploying SSH (the Secure Shell)
Protecting data with IPsec
- Authenticating remote locations
- Tunnelling traffic between sites
- Exchanging keys
Managing Your Organisation's Security
- Developing a security plan
- Responding to incidents
- Enumerating the six critical steps
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