The security of a web app (ie, running inside a container) is relatively secure. The "insecurity" attributed to Java is almost entirely browser plugin based, at least for the past few versions I ran through the last time someone made this claim. I personally would never write an applet, at least not using Java. I'd go for an application, in which case you're back to relatively secure. Now if you download a trojan, there's no helping that.
As for performance, I thought this one had finally been put to bed with results like these and many others. Yes, C/C++ can be fast. Yes, Java can also be fast. They all can be dog slow too.
Some of the better sci fi movies that have come out over the past 30 years that seem in the realm of the possible and do not use time travel, aliens, or faster than light travel for their story lines include in no particular order:
- Elysium - excluding the space station, it would have to be considerably further away than it looked, and an open design to space to allow "crash" landings? Well, maybe....
- Antiviral - look beyond the maybe not so preposterous story line
- Surrogates - just a little further into the "virtual" world and robots
- Enemy of the State
- The 6th Day - cloning and memory control, seems more realistic by the day
- Eternal Sunshine of the Spotless Mind - long winded, but the ability to control memories
- The Island - cloning a slave work force and having memory imprints to quickly online them into productivity
- Deep Impact
- RoboCop - corny, but with today's robots, bionics, and again, that memory imprint "technology"
Don't get me wrong, there's lots of good sci-fi flicks out there, but many use a piece of fantasy as the underlying prop. The only one that I have seen and didn't list is Star Trek, which, despite having faster than light travel, actually has more science based features in aggregate than anything listed above, including its FTL travel. It's humanoid lifeforms speaking english everywhere... well, that's what kills it as sci fi, but they needed something besides boring dead planets to visit as foils for the ever impressive Capt James T Kirk.
Stargate? It was more plausible as the seeding of the universe with humanoids, but again, uses an alien race as the a story basis. At least their aliens were completely bereft of "human" rationale and logic, for the most part, working within their own constructs.The "ancients" metaphysical beings killed this one, even though that may be a more realistic final picture for ourselves, in some sort of computer matrix. We're already discussing uploading ourselves after all.
I certainly hope that NSA contractors are a little better than your run-of-the-mill company in terms of security.
Hate to break it to you....