The Week Ending April 27

Topping this week's roundup of those having a rough week are Amazon and Google parent Alphabet, after a data error suspended trading of their shares on the New York Stock Exchange.

Also making the list this week are Apple for having to recall some MacBook Pro models for potential battery problems; Altaba (formerly Yahoo), which was fined $35 million this week for failing to disclose the massive security breach by hackers in 2014; Western Digital for reported file leakage problems with its My Cloud EX2 device; and Panera, which has been hit with a class action lawsuit over a reported security breach of the restaurant chain's IT system.

Not everyone in the IT industry was having a rough go of it this week. For a rundown of companies that made smart decisions, executed savvy strategic moves -- or just had good luck -- check out this week's 5 Companies That Came To Win roundup.