A surprising winner emerges from the recent Sony hacking incidents – Blackberry. When the company's computers, email and landlines went down as upshot of the cyber attack that happened in December, Sony returned to using old Blackberrys, according to Wall Street Journal.

"The day after Sony Pictures employees discovered that company email was unusable following a cyberattack, senior executives came up with an old-style communication network: a phone tree, in which updates on the hack were relayed from person to person," WSJ reported.

The beleaguered entertainment company revoked its initial decision to pull out the controversial comedy "The Interview" from theaters. This Seth Rogen-film is now dubbed as Sony's most successful online movie of all time after making $15 million a few days after it was made available in YouTube and other streaming websites.

Investigators believed that North Korea hired contractors to carry out the devastating cyber attack that revealed confidential information such as salaries of actors and cost of movie making.

Aside from the movie studio, Sony's PlayStation Network (PSN) was also hacked. This time, Lizard Squad claimed responsibility for messing up the system on Christmas Day. It took Sony several days to resolve this issue.

The same group also confirmed divulging employee log-ins and handing these stolen data to Guardians of Peace (GoP), the faction allegedly menaced Sony Pictures earlier.

The massive outages have unraveled the tight security arsenals embedded in the Blackberry backbone.

Blackberry has led the mobile revolution years ago. And even after failing to keep up with the fast-paced developments in the industry, it is still one of the most secured platforms in the mobile realm. This is also one of the reasons why government agencies are tapping Blackberry services for their internal communications needs.

Last December, it went retro and launched Blackberry Classic. Under a new CEO, the company is trying to regain its lost momentum.