184: 
185: General Security Concepts, Communication Security, Infrastructure Security, Basics of Cryptography, and Operational / Organizational Security
186: Use more than just ascii, use more than just numbers, require a certain length, require frequent changes, lockouts after a certain number of failed attempts
187: They use all ASCII characters, they use all numbers, they are common words, they are too short.
188: Train employees, restrict the amount of information help desk employees know
189: Brute force, Social engineering, Denial of Service, Man in the Middle, 
190: 
191: Test your policies yourself or hire an off site penetration tester.
192: 
193: Something the user knows (password), Something they have (RFID cards), Something that's part of them (fingerprint).
194: Fingerprint, retina match, voice, facial recognition,
195: LCP phase where the challenge message is sent, client responds with a hash value, authenticator checks its response against its own calculation. Communications are established.
196: Patch, check accounts, check logs, user accounts
197: 
198: Network sniffing, SQL injection, weak passwords