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• Social network
• Microblog 140 letters per message
• Possibility to update account by mobile phone or
  email
• Twitpic to upload pictures

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Founded by
Biz Stone
Jack Dorsey
Evan Williams
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History

• 2006 developed for the employees of ODEO
• Product of the company OBVIOUS
• 2007 disincorporated and independent company

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USERS

• Germany 30,000 active users
• New registrations per week 4,000
• Active use longer than one month 40
• Used by public entities, companies, news channels
  and for political campaigns

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Security Problems

• 1st in 2007 possibility to manipulate SMS and
  publish a message on behalf of someone else
• 2nd in 2009

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Privacy Policy

• Submission of personal data that is collected by
  twitter
• Consent to transfer and processing of your data
• Share with 3rd parties under certain conditions
• Disclose of information to government, law
  enforcement officials
• Transfer of assets also transfer of your data