Boiler room (business) protection. A fictional "boiler room" brokerage firm was dramatized in the 2000 film "Boiler Room", and the play and film "Glengarry Glen Ross" show a similar boiler room operation selling real estate. The 2013 film "The Wolf of Wall Street", starring Leonardo DiCaprio, also involves a boiler-room investment business and is based on the memoir of convicted penny stock fraudster, Jordan Belfort. A 2010 episode of the television series "White Collar" depicted fictional conman Neal Caffrey infiltrating a group of corrupt brokers also peddling inflated penny stocks. Boiler room (business) In business, the term boiler room refers to an outbound
Four-square cipher the assumed language of the original message. Cryptanalysis of four-square generally involves pattern matching on repeated monographs. This is only the case when the two plaintext matrices are known. A four-square encipherment usually uses standard alphabets in these matrices but it is not a requirement. If this is the case, then certain words will always produce single-letter ciphertext repeats. For instance, the word MI LI TA RY will always produce the same ciphertext letter in the first and third positions regardless of the keywords used. Patterns like these can be cataloged and matched against single-letter repeats in the ciphertext. Candidate