Quest Software Accused of Using Stolen Code

Computer Associates International Inc. said in a lawsuit that rival Quest Software Inc. of Irvine is making business software with a source code stolen from a company Computer Associates bought. Quest and four former employees of Platinum Technology International Inc. are accused of copyright violations and theft of trade secrets in a lawsuit filed in U.S. District Court in Chicago. A Quest spokeswoman said company lawyers were reviewing the suit.

Islandia, N.Y.-based Computer Associates fell 61 cents to $14.68 on the NYSE; Quest fell $3.03 to $9.38 on Nasdaq.