As Disney ditches the productivity platform following a data breach, the UK-based open-source tool Matrix prepares to step up with a bold claim: that it’s hack-proof. Is mainstream tech ready for it?

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Never say we don’t take you anywhere with these newsletters. I write this from the departure lounge at Berlin Brandenburg airport, where I can recommend its simulacrum of fish and chips but cannot recommend its security line (seriously, queue up early).

I’m here for a conference run by a tech company you’ve never heard of that makes a technology you’ve never used: Matrix. That’ll become important later.