Acquisition History / Twitter / Whisper Systems

Twitter Acquires Whisper Systems

Announced November 28, 2011

TwitterMobile privacy and security2011

What happened

A mobile data security company.

Acquirer
Twitter
Target
Whisper Systems
Announced
November 28, 2011
Price
Undisclosed
Industry
Mobile privacy and security

By the numbers

Twitter's acquisition history
13th of 70 tracked deals
Disclosed prices
11 of 70 Twitter deals
Twitter's average disclosed price
$135.7M
Twitter's largest disclosed deal
TellApart ($479M)
Tracked acquisitions in 2011
117 across all acquirers
Twitter in Mobile privacy and security
1 acquisition

Frequently Asked Questions About This Acquisition

When did Twitter acquire Whisper Systems?

Twitter acquired Whisper Systems on November 28, 2011. This was Twitter's 13th publicly tracked acquisition out of 70 we have on record.

How much did Twitter pay for Whisper Systems?

The price Twitter paid for Whisper Systems was not publicly disclosed. Only 11 of Twitter's 70 tracked acquisitions have a disclosed price.

What does Whisper Systems do?

A mobile data security company.

What other Mobile privacy and security companies has Twitter acquired?

Whisper Systems is Twitter's only publicly tracked acquisition in Mobile privacy and security so far.

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