Bests & Worsts Reviews from Amazon

I'll start by saying I owe this review to the reviewer above named Moonie who mentioned a "decoder." I've used this stamp for about a year and even gave one to my mom and an aunt as a gift. I deeply regret that now. I thought this stamp was great, and just happened to see Moonie's review when I came back to order a second stamp for myself in pink. It appeared to completely obliterate my information when used on plain, non-glossy paper or other non-slick surfaces. When I read that a black marker "undoes" the effect, I didn't believe it. So I tried it. I'm sad and actually a little scared to realize that it's true. I took papers I had stamped almost 24 hours earlier and scribbled lines across the stamped area with a black sharpee. At first, I didn't see any difference and was about to disregard the warning when the paper caught the light and my personal information practically jumped off the page. Black marker over top of this stamp makes the original text reflective and "thicker." It stands out through the stamp's ink and when turned towards light it reflects the light and basically glows. I'm very troubled to think of how much information has been "safely" discarded by myself and members of my family, never knowing how easy this lock was to pick. It's a great idea, but sadly it's just too easy to get around--the countermeasure costs less than a dollar and can be found in just about every household, office, and store there is. And even more sadly, reviewers can't warn others without the ID thieves finding out about it, too. I'm going to have to go back to shredding. Thanks again to the original reviewer who brought this to my attention.