Tech updates from around the web

[The Next Web] EY unveils blockchain prototype that makes Ethereum transactions private

[The Next Web] India considers outlawing cryptocurrency use (but blockchain is still cool)

[The Next Web] Java is still the no. 1 programming language in the world. Learn it now (and get paid) for only $29

[The Next Web] Indian traders are fighting Amazon by trying to get their town blacklisted

[The Next Web] Goldman Sachs launches Bitcoin derivatives – but only for a special few

[The Next Web] Trendy challenger bank Monzo is Britain’s latest unicorn startup

[The Next Web] India’s porn ban is ridiculously easy to get around (thank God)

[The Next Web] Review: Amazon’s new 4K Stick is the Fire TV you want

How to Put Your iPhone or iPad into DFU Mode

[The Next Web] Hackers launch commercial affiliate scheme to incentivize Bitcoin ransomware

The New MacBook Air Might Kill Off The MacBook

What Does It Mean for a Photo to be “Sharp?”