There is no need to shield electronics. The induced currents only cause damage to long conductors, to the electrical grid and to long fiber optic cables.
That's a complicated one, it's still the electronics but they need a particular circuit that can stop short rise time transients. Also, any larger devices probably want to have shielding and ethernet devices will need some extra hardening, we're talking 25+kv/m events here so unless your computer can handle the monitor being at a 25kv differential from the tower you're gonna have a bad time.
It's not very different in terms of amplitude, though rise times for an E1 EMP impulse can supposedly be single digit nanoseconds so equivalent to a >400 MHz impulse. I know from experience that modern electronics can't handle that because I've fried USB ports by operating radio systems in that band, though there are some obvious differences there.