[babygene]

“In a split second, all someone has to do is run a magnet over the memory card and the data would be gone.”

That would not do it... Magnetics are not used in memory cards.

[Red Steel]

That would not do it... Magnetics are not used in memory cards.

If they used magnetized storage media they can be degaussed by a magnet.

However you're correct if they are using flash memory.

[unixfox]

“In a split second, all someone has to do is run a magnet over the memory card and the data would be gone.”

That would not do it... Magnetics are not used in memory cards.

Static electricity on the other hand...