Passwords secure 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. In this video, learn about common attacks against passwords, including brute force attacks, dictionary attacks, hybrid attacks, and rainbow tables.
- [Mike] 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 into a system,…the login 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, computed using a one-way hash function.…When the user logs in, the login process…takes the password, computes a hash,…and then compares that hash with the one stored in the file.…
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- Provisioning and deprovisioning
- Identity security issues
- Using biometric measures as identification mechanisms
- Multifactor authentication
- Password authentication protocols
- How LDAP and Kerberos work together
- Identity as a Service (IDaaS)
- Mandatory and discretionary access controls
- Defending against password attacks
- Social engineering attacks
Skill Level Intermediate
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Appropriate for all
IT Security: Key Policies and Resourceswith Gregory Michaelidis23m 44s Intermediate
Implementing an Information Security Programwith Kip Boyle2h 31m Appropriate for all
IT Security Careers and Certifications: First Stepswith Marc Menninger2h 6m Appropriate for all
1. Identity and Access Management
5. Access Control Exploits
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