[InvaderFizz]

This would require funding, exchanging, and double spending all in the span of a few minutes.

The more confirmations you have to unwind, the more work you have to do to catch up with the long chain.

All that will happen is exchanges require a greater number of confirmations before allowing you to trade deposits.

[joosters]

All true, but it is exactly what happened in this latest attack!

And yes, reportedly exchanges have increased the number of confirmations required to confirm a deposit as a result. But it's too late for the ones who got ripped off by the double spend!

[bduerst]

And most exchanges require numerous confirmations for this reason.