This is a really good recording. I'd rank it third behind his first and third solo albums [neither of these have names]. Back when MTV actually showed music videos "Shock the Monkey" blew away just about every other video on the planet (the song fit the video perfectly, too), and as I recall it won video of the year.
Musically, I'd call Security more "sensual" and "warm" than his previous solo works. Which is fine, if different. His third, "melting face" solo album has a distinctly "punk" feel to it (though it should not be confused with punk, Gabriel will never be mistaken for Joe Strummer, for example).
The real problem with Security is that it marks the beginning of a downward slope for Gabriel as an artist. Firstly, the album is short. Only eight songs? That's not an LP, it's a glorified EP (for those of you who still understand these terms in an MP3 world <laugh>). Secondly, in Security we have the first indications that Gabrial has run out of ideas. "Wallflower" is little more than an extension of "Lead a Normal Life" on his third solo album (and not half as frightening), and he would then finally exhaust the theme on yet another, still weaker, song on his next album, So. It is sad how great artists reach a point where all that is left is parody/self-parody. He hasn't reached it quite yet with Security, this is still very good stuff. But the decline will emerge full-blown four years later with So, and I haven't bought a Gabriel recording since then (though I have seen a few new videos, and nothing about them has changed my mind).