It is a national security risk to allow commercial device makers to lock down the software on these devices and then abandon them in a few years. If in twenty years today's SmartTV has a network vulnerability discovered, the manufacturer (or whoever buys or merges with it) should be liable for updating the SmartTVs, unless it has made the device such that the owner can write and change the code at will.

This law should apply to cars, microwaves, smartphones, computers, washing machines, tractors, game consoles, etc. A twenty percent or more sales tax and perpetual warranty for "closed" platforms. Make it no longer economical to do business the way it currently is done!

376289 per https://crypto.stackexchange.com/a/59796, depending what you count and don't count.

We also considered QcBits[6] as a more space-efficient alternative to McEliece, but it just seemed too new / not well understood for our tastes, and last I saw there was a recent attack on it that hadn't been mitigated yet. Definitely keeping an eye on it for the future though.

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1: https://www.cyph.com/castle

2: https://sphincs.cr.yp.to

3: https://tungchou.github.io/mcbits

4: https://github.com/NTRUOpenSourceProject/ntru-crypto

5: https://github.com/Microsoft/PQCrypto-SIDH

6: https://tungchou.github.io/qcbits

So you can avoid quantum attacks by making every transaction split your funds between the recipient and a new address which you control (this is also a good practice to avoid having your payments being tracked).