There is no evidence, the company says, that the bug has been exploited maliciously
If the company doesn't, legal action might be taken
Thursday's announcement could spark a leapfrogging competition between the rival apps, some experts say
The new feature comes five months after the launch of Twitter's Vine video app
Spindle's services have been shut down for the transition
Recent discussions aimed at a deal aren't likely to be revived, a Wall Street Journal report said
The nonprofit group proposed a set of principles aimed at improving IP discussions
'A small team has been working on a big idea,' a letter to the media says
Encrypting data may not guard against surveillance, some experts say, while others argue in favor of taking steps to protect privacy
The new feature lets users more easily surface content by topic
