security and custom rom/recovery

I currently have an lg g3 ls990 rooted running stock lollipop 5.0.1
My issue is i would like to install cm 12 and twrp recovery but I am also concerned about the risks to my devices security. I have always encrypted my phone and i have done many software tweeks through various root apps to keep my device throughly locked down. My main question is how will my security needs be translated over to cm12? And will twrp work once ive encrypted my sd and my phones internal storage?

H950 5.1.1 V11z Bricked/Bootloop: LG Security Error, Authentication Fail #9

Hello

A brief timeline of events leading to this thread:
1. I purchased a G-Flex2 H950 from Ebay for 0 and was supposed to be upgrading from a Galaxy S4-I337.
2. Received my device yesterday and set out to update to 5.1.1 & root the device to remove bloatware.
3. I was able to update to 5.1.1 V11x using my StraightTalk sim on AT&T network.
4. After many frustrating hours of trying to root using different methods, I finally was able to root using the technique mentioned in this thread: http://forum.xda-developers.com/g-fl...5-1-1-t3178354
5. A nice complement to point "4" above was the firmware update to 5.1.1 V11z.
6. Extremely happy that I was ready to rock, I set out to delete all the bloatware from my device.
7. First surprise obviously was the inability to remove a bunch of AT&T apps because "APK could not found" error.
8. Like the idiot that I am, I went ahead and deleted the "rootsystem.img" from the internal memory (unnecessarily, blame my OCD!).
9. Now after I finished de-bloating the device (or so I thought), I rebooted it and to my horror... I see the error message:

LG Security Error
Authentication Fail #9

10. I attempted to get to the recovery mode and deleted/erased all data & settings. No dice!
11. I'm still able to get to the download mode using the Volume-Up & USB connect method (& this is why I'm cursing myself at point "8" because I could have re-used the easy root method again to flash the img file).
12. I tried to use the "LG Mobile Support Tool", it recognizes the device correctly as "LGH950" but says V11z is the latest software update.

My question to experts: How SOL am I? I don't think LG would honor my warranty since the purchase is NOT from a authorized dealer/reseller. So no chance of warranty repair/replacement, no?

I looked everywhere (for close to 10 hours) for KDZ & TOT files to even attempt something. But I couldn't find anything for H950. Man, I hate AT&T so much now... Why couldn't they just leave the bootloader unlocked? Or LG (AT&T?)even provide the necessary files to start off with?

Could someone with more knowledge please offer any help? Meanwhile, I've pretty much resigned to be joining the queue full of others with bricked H950's...

Stagefright Security Update for Nexus 4/ Zimperium shows 2 new vulnerabilities

Opened my phone today to see if the security update was ready for install. Not only was the update not there, but there was 2 new vulnerabilities in : CVE 2015 3376 & CVE 2015 6602. Is Google late or are these updates coming out in a different format?? My phone is a rooted Nexus 4 / Android version 5.1.1 / Build # LMY 48M /. I certainly wish Google would keep us updated as to the release of these Security updates. If this October Security update is available for my phone, could someone re-direct me to the site so I can download and install it. Thanks...:) This post is all about the Stagefright Security vulnerabilities. Updates for said vulnerabilities only.

Monthly security updates

LG promised to fix Stagefright and release monthly security updates in august 2015. Did they release update for international devices or you guys are still waiting?

help security error

ok so i was trying to update my phone with a root img i found with the new update so i did what was needed but something wrong happened and now im stuck at a security error screen

but im able to get into download mode an my computer reconizes my phone but i am able to push the update through download mode but same thing when i try to reboot a security error pops up

i know its flashing and connecting because i can command my phone off from computer

so is their any way i can flash a file straight from my computer to download mode without it on my phone