In another suspected hack, Apple Inc.'s iCloud is under brute attack, as another batch of nude photos of female celebrities were posted online amid fixes being employed to restore users' confidence on the system.

"A trove of naked photos and video content stolen from the stars appeared on the 4Chan chatroom site over the weekend. Questions about how the hackers got hold of the celebs' accounts began to center around a possible flaw in Apple's iCloud and Find My iPhone," Kelly Jackson Higgins reported for Dark Reading on Sept. 2.

The latest victims of the iCloud cyber bullies include singer Rihanna, model Gabrielle Union, reality starlet Kim Kardashian, actress Vanessa Hudgens and US ladies soccer team goalkeeper Hope Solo.

E! Online also reported that nude photos of Kate Borsworth, Hayden Panattiere, Avril Lavigne, Leelee Sobieski and Meagan Good were showing in Reddit.

Following the massive iCloud hack that exposed intimate images of Jennifer Lawrence and many other female celebrities, Apple's CEO Tim Cook promised to bolster iCloud security.

"When I step back from this terrible scenario that happened and say what more could we have done, I think about the awareness piece," Cook said. "I think we have a responsibility to ratchet that up. That's not really an engineering thing."

However, Apple's patriarch does not want to believe that this incident was a picture of substantial security vulnerability, and instead mentioned "phishing".

"They were phished," Cook said in another interview with Wall Street Journal.

"My understanding is it wasn't a breach there, either, of the infrastructure. It was a phishing expedition. There are lots of bad people that do this," he added.

In the wake of iCloud breaches is the buzz-worthy launch of iPhone 6 and iPhone 6 Plus.