I've had a neighbour which had her computer destroyed by lightning. She bought a new one and disconnected it during all thunderstorms from power. But she didn't

I've had a neighbour which had her computer destroyed by lightning. She bought a new one and disconnected it during all thunderstorms from power. But she didn't disconnect her modem from phone line (it was in 1997). After another thunderstorm, modem stopped working. When I pulled it out, the main modem chip had a nice hole with some copper vapourised near it. So, unplugging telephone in some areas is a good idea. Now my whole town has proper protectors and I didn't have any problems with electric equipment since years.