The tech sector has offered many opportunities to multiply money. Artificial intelligence (AI), e-commerce and online advertising are some of the tech avenues that have propelled corporations and indices to all-time highs.However, every sector is filled with bad apples that can hurt shareholders and leave them trailing the S&P 500. Some tech stocks look promising and enjoy significant rallies only to fizzle out once revenue growth slows down.Many high-flying tech companies risk this fate. While these firms ...