VPNs that do no encrypt data?

Yes!
You can see the report on Android (free and not free) VPNs here:
https://research.csiro.au/ng/wp-content/uploads/sites/106/2016/08/paper-1.pdf
And an article summarizing it here:
https://www.techgig.com/tech-news/editors-pick/Avoid-these-10-insecure-VPN-apps-on-Android-88546?mailer_id=2888&utm_source=TG_batch&utm_medium=email&utm_campaign=digest_news_2017-01-26&etoken=cGZzaWx2YUBnbWFpbC5jb20=&activity_name=MjIwNzcw&dt=&auto_login=lKaUjJKbhWOnk7@@OkG6EkpNlR0eASYJcXXFUV1dlR0eASYJWWHhWV15YWFxy&src_type=autoLogin

Open source, IoT and... bad uses (Minecraft servers)

Open source, IoT and... bad uses (Minecraft servers):
http://www.bbc.com/news/technology-38678466


raft

The sociometric devices "trend" in the workplace

I've used these ones to track my walking and my sleep. Personally. But using these in the workplace (even if your boss says it is optional) is a completely different thing. There are devices to track movement, conversations, sleep, ... Big Brother is coming:


http://www.ibtimes.co.uk/big-brother-fears-companies-encourage-employees-wear-body-monitors-24-7-1601153