Jump starting an EFI car?

[Jeremy Pronk]

Hi,

I am mainly a lurker on this list, but I should be getting a car with 
aftermarket EFI to play around with soon.

Anyway, this morning the next door neighbour needed a jump start, and I 
remembered hearing somewhere that jumping starting an car with EFI can 
burn out the ECU? If so, what is safe method, and how does it actually 
get burnt out (I would like to learn)?

regards,

Jeremy, Sydney AUS
'69 510 4dr