Privacy and security issues to keep in mind:
- Tracking user preferences, location etc.
- Convoluted privacy policy changes
- Disturbing and annoying advertising in apps or on websites
- Targeting with commercial and political messages
- Unwanted notifications and marketing
- Use of personal data for commercial purposes
- Exposing private messages add emails publicly
- Exposing search history publicly
- An app posting on user’s behalf
- Difficulty to export personal data
- Difficulty to cancel a subscription
- Hidden fees and costs not explicitly mentioned
- Importing contacts of friends
- Trolling and stalking online
- Data breach of login, password and credit card details
- Gmail, Facebook, Twitter or Instagram accounts being hacked.
From Smashing Magazine
Dancing Treefrog 