Join Mike Chapple for an in-depth discussion in this video Defending against password attacks, part of CompTIA Security+ Exam Prep (SY0-401): Threats and Vulnerabilities.
- Passwords secure access to the…vast majority of systems today.…This time tested approach does provide adequate security…for many purposes, but also has potential drawbacks.…Attackers can wage attacks designed to crack passwords…stored in system files.…Many recent attacks used this approach…to steal massive numbers of user accounts.…Let's take a look at some password attacks.…On Linux systems, password files contain user credentials.…When a user attempts to log in to a system,…the log in process checks the password file…to determine whether the password is valid.…
Now of course, the file doesn't simply contain…a copy of the password.…That would be an easy target for attackers,…and would also allow system administrators…to know all of the user passwords on a system.…Instead, the password file contains a password hash,…shown here, computing using a one way hash function.…When the user logs in the log in process takes the password,…computes a hash, and then compares that hash…with the one stored in the file.…If they match, the user is logged in.…
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- Comparing viruses, worms, and Trojans
- Understanding backdoors and logic bombs
- Defending against denial of service and password attacks
- Preventing insider threats
- Detecting social engineering attacks
- Preventing wireless eavesdropping
- Understanding cross-site scripting
- Preventing SQL injection
- Deterring attacks
- Securing your network
- Scanning for and assessing threats
Skill Level Intermediate
Q: This course was updated on 04/25/2016. What changed?
A: We updated eight movies to stay on top of the latest trends in IT security, and the latest objectives on the "Threats and Vulnerabilities" domain of the CompTIA Security+ exam.
2. Understanding Attack Types
3. Social Engineering Attacks
4. Wireless Attacks
5. Application Attacks
6. Mitigation and Deterrence
7. Discovering Threats and Vulnerabilities
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