Really close call between entry #3 and #4. Semi-talking ourselves into #4 while writing feedback on #3. We like the minimalist approach and the recognizability. The logo itself is simple and elegant. Still thinking about the "secure" factor. Does this logo convey "Secure"? Undecided. This is a very strong entry, that could pull out front. It would be interesting to see this in different colors and with icon as a shield, rather than a sphere. That said - this one may still become front runner.
Entry #4 strongly favored now. We have gotten consistent feedback that it is the most unique and impressive. While others here may portray the "secure" element more clearly, we feel the uniqueness is clutch.
Still loving concept of 4 and 31. Feeling 25 and 26 by maxk portray "secure" more and is equally recognizable. Now a very tight race between the two. Thanks for different color looks.