Definition - What does Vulnerability mean? Vulnerability is a cyber-security term that refers to a flaw in a system that can leave it open to attack. A vulnerability may also refer to any type of weakness in a computer system itself, in a set of procedures, or in anything that leaves information security exposed to a threat.
Currently, the one hundred dollar bill is the highest denomination printed. At one time the US also issued $500, $1000, $5000, and $10,000 bills for general circulation, and p â¦ rinted special $100,000 bills for use inside the government.Printing was discontinued in 1945.  The present denominations of US currency in production are $1, $2,  $5, $10, $20, $50 and $100.    Printing of high-value notes was suspended in 1945, although the  last ones were all part of the 1934 series and carry that date  regardless of what year they were actually issued.
Although they are still technically legal tender in the United States, high-denomination bills were last printed on December 27, 1945, and officially discontinued on July 14, 1969, by the Federal Reserve System, due to 'lack of use'. The $5,000 and $10,000 effectively disappeared well before then.