The most common and most likely answer to this crossword clue is the 6 letter word HACKER which also is the latest solution we found used in LA Times in 2012.
Unauthorized user? crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| HACKER | 100 % | 6 | 
Words with a meaning similar to the clue: Unauthorized user?
These words may or may not be a possible solution to this crosswords clue.- hacker
 - pirate
 - illegitimate
 - liberty
 - misuse
 - piracy
 - privacy
 - awol
 - bastard
 - bond
 - conversion
 - crib
 
Crossword Answer definitions
HACKER noun- One who is expert at programming and solving problems with a computer.
 - One who uses a computer to gain unauthorized access to data, or to carry out malicious attacks.
 - A computer security professional.
 - Something that hacks; a tool or device for hacking.
 - A fork-shaped tool used to harvest root vegetables.
 - Someone who hacks.
 - One who is inexperienced or unskilled at a particular activity, especially a sport such as golf or tennis.
 - One who operates a taxicab
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution