Bitlocker Security Questions


Coincidence? The flow was so continuous that I didn't know a year had gone by until barreleye mentioned resurrecting the thread lol

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TraderGary said:
In my research neither AES 128-bit encryption nor AES 256-bit encryption used by BitLocker has ever been hacked. Does anyone have evidence to the contrary?
Click to expand...

You have it the wrong way around. The right question is does anyone have evidence that it cannot be hacked. Your assumption always must be that it can unless proven that it cannot.

Hitler thought enigma was uncrackable, and the joke was that it would have been faster for German commanders to ring Bletchley to get their orders.
 

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Win711 said:
You have it the wrong way around. The right question is does anyone have evidence that it cannot be hacked. Your assumption always must be that it can unless proven that it cannot.

Hitler thought enigma was uncrackable, and the joke was that it would have been faster for German commanders to ring Bletchley to get their orders.
Click to expand...
This. And you don't necessarily have to crack the encryption algorithm itself to still be able to decrypt. Microsoft kept insinuating that stealing the keys was so difficult in fact, you had to be a bit paranoid to be worried. Until someone proved that stealing them was close to effortless in a lot of cases. Next, Microsoft kept propelling the false belief that persists among average users, that an attacker who has the ability to swap the motherboard + SSD without easily being detected cannot easily manufacture a fake BitLocker screen to covertly transmit the valid PIN i.e. after letting the unsuspecting user enter the PIN. I have said it before, and will keep saying it.. just because you're paranoid, doesn't mean they're not after you.
 

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hdmi said:
And you don't necessarily have to crack the encryption algorithm itself to still be able to decrypt.
Click to expand...

Exactly. Engima probably still is uncrackable even today with supercomputers if using brute force and trying every combination, but by intelligently eliminating a lot of possibilities the combinations can be reduced to a manageable size. I'm not a cryptologist, but it seems that theory could be applied to any puzzle.

Russia's one-time pad couldn't be cracked either, until someone used the one-time pad twice, and then someone noticed. One-time pad - Wikipedia

Locks just keep honest people out.

hdmi said:
just because you're paranoid, doesn't mean they're not after you.
Click to expand...

Just because the water is calm doesn't mean there are no crocodiles ;)
 

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Win711 said:
Exactly. Engima probably still is uncrackable even today with supercomputers if using brute force and trying every combination, but by intelligently eliminating a lot of possibilities the combinations can be reduced to a manageable size. I'm not a cryptologist, but it seems that theory could be applied to any puzzle.

Russia's one-time pad couldn't be cracked either, until someone used the one-time pad twice, and then someone noticed. One-time pad - Wikipedia

Locks just keep honest people out.



Just because the water is calm doesn't mean there are no crocodiles ;)
Click to expand...
Another excellent example was the Sky ECC app.

 

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hdmi said:
Another excellent example was the Sky ECC app.
Click to expand...

I don't know of any communications that hasn't be compromised by a government, except talking in person by white noise and covering your lips.

Bitlocker will stop friends and family but it's not stopping a government or pro criminal. I wouldn't trust $1 million in bitcoin to bitlocker, for sure.
 

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All I was asking for was proof that AES 256-bit encryption has ever been hacked. I understand that theoretically it can be hacked but never has been as it would take computer power we don't currently have. Until then, I'm confident using AES 256-bit encryption in my password manager and in BitLocker.
 

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I'm certain defeating any modern encryption would require stealing the key. So it's not the encryption that is insecure, just the user!
 

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TraderGary said:
All I was asking for was proof that AES 256-bit encryption has ever been hacked. I understand that theoretically it can be hacked but never has been as it would take computer power we don't currently have. Until then, I'm confident using AES 256-bit encryption in my password manager and in BitLocker.
Click to expand...
you almost never go after the encryption.. a door has a lock and then you pick the lock instead of digging through a ten foot concrete wall.
 

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Marie SWE said:
you almost never go after the encryption.. a door has a lock and then you pick the lock instead of digging through a ten foot concrete wall.
Click to expand...
And that would entail going after the unencrypted data while it's currently in use. Now you're talking about basic security of the PC itself, the weakest link.
 

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TraderGary said:
And that would entail going after the unencrypted data while it's currently in use. Now you're talking about basic security of the PC itself, the weakest link.
Click to expand...
You always go after the weakest link.. why complicate things if the goal is to obtain the data.
Hackers always go after the login credentials to get access to high security setups.. You cant hack a network with an active enterprise firewall if you are on the outside.. so you go after the person that has the login credentials with social engineering to obtain the goal(key)
 

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Marie SWE said:
You always go after the weakest link.. why complicate things if the goal is to obtain the data.
Hackers always go after the login credentials to get access to high security setups.. You cant hack a network with an active enterprise firewall if you are on the outside.. so you go after the person that has the login credentials with social engineering to obtain the goal(key)
Click to expand...
Also, the social engineering part becomes even less complicated if the unsuspecting user continues to falsely believe that the data is secure as a result of it being protected by using BitLocker with AES 256-bit encryption. In essence, the stronger the encryption algorithm, the better. For the hackers anyway...
 

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hdmi said:
Also, the social engineering part becomes even less complicated if the unsuspecting user continues to falsely believe that the data is secure as a result of it being protected by using BitLocker with AES 256-bit encryption. In essence, the stronger the encryption algorithm, the better. For the hackers anyway...
Click to expand...
we have to be careful of how much we say in here do to rule6 even we only talk about theory approaches and methods how to protect yourself against it... i have already got posts deleted.
 

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Marie SWE said:
we have to be careful of how much we say in here do to rule6 even we only talk about theory approaches and methods how to protect yourself against it... i have already got posts deleted.
Click to expand...
I am not discussing the subject of hacking someone else's computer. Rather, I am discussing the simple fact that BitLocker Drive Encryption on editions of Windows 11 that support the feature never was designed to, by itself, be adequately secure in any way, shape or form. Its purpose is for it to be used in conjunction with a whole list of additional things like Multi-Factor Authentication (MFA) or better yet: passwordless authentication, UEFI Secure Boot, TPM 2.0, Windows Trusted Boot, Windows Measured Boot, an Anti Malware remote service, Device Health Attestation (DHA), surveillance of the physical environment, chassis intrusion detection mechanisms, and whatnot.
 

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    Logitech K800
    Mouse
    Logitech G402
    Internet Speed
    30Mbit/s up, 500Mbit/s down
    Browser
    FF
    Antivirus
    What's an antivirus?

  • At a glance

    11 Homei5 1135G716GB DDR4Intel Iris Xe
    Operating System
    11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Medion S15450
    CPU
    i5 1135G7
    Memory
    16GB DDR4
    Graphics card(s)
    Intel Iris Xe
    Sound Card
    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
    Monitor(s) Displays
    Sony Bravia XR-55X90J
    Screen Resolution
    3840×2160
    Hard Drives
    2TB SSD internal
    37TB external
    PSU
    Li-ion
    Keyboard
    Logitech K800
    Mouse
    Logitech G402
    Internet Speed
    30Mbit/s up, 500Mbit/s down
    Browser
    FF
hdmi said:
I am not discussing the subject of hacking someone else's computer. Rather, I am discussing the simple fact that BitLocker Drive Encryption on editions of Windows 11 that support the feature never was designed to, by itself, be adequately secure in any way, shape or form. Its purpose is for it to be used in conjunction with a whole list of additional things like Multi-Factor Authentication (MFA) or better yet: passwordless authentication, UEFI Secure Boot, TPM 2.0, Windows Trusted Boot, Windows Measured Boot, an Anti Malware remote service, Device Health Attestation (DHA), surveillance of the physical environment, chassis intrusion detection mechanisms, and whatnot.
Click to expand...
I didn't either that time ;-)
 

My Computers My Computers

System One System Two

  • At a glance

    Linux: Debian, Kali-linux, Alma, Win: 7, 8.1,...i3, i5 and i7 From 2gen to 9th gen... Server ...
    OS
    Linux: Debian, Kali-linux, Alma, Win: 7, 8.1,2012R
    Manufacturer/Model
    HP Elitebook 840, AsusX53, Aspire E1-572. AsusUX32A, HP Pro3130mt+3010mt, HP Proliant ML150, 3xCustom-PC, i3, i5, i7
    CPU
    i3, i5 and i7 From 2gen to 9th gen... Server dual Xenon
    Hard Drives
    Sata, M.2, SAS

  • At a glance

    Retro: 2003server.XPpro, Win2000, Win98SE, Wi...Oldest intel 8088 up to P4 dual core
    Operating System
    Retro: 2003server.XPpro, Win2000, Win98SE, Win95, Win3.11, MS-DOS, IBM-DOS
    Manufacturer/Model
    Commodore, AST, Fujitsu, Compaq, etc etc. etc Around 15 desktops and 20 laptops in the collection
    CPU
    Oldest intel 8088 up to P4 dual core
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    MFM, IDE, SCSI
Put seed phrase for bitcoin wallet on laptop with bitlocker and say "come get it". If it's uncrackable there is nothing to fear. ;)
 

My Computer My Computer

At a glance

Windows 11Intel(R) Core(TM) i9-14900KCorsair 128GB (4x32GB) DDR5 5600MT/S CL40 Mem...Onboard
OS
Windows 11
Computer type
PC/Desktop
Manufacturer/Model
Intel
CPU
Intel(R) Core(TM) i9-14900K
Motherboard
GIGABYTE Z790 AORUS Elite X WIFI7
Memory
Corsair 128GB (4x32GB) DDR5 5600MT/S CL40 Memory Kit
Graphics Card(s)
Onboard
Sound Card
Onboard
Monitor(s) Displays
43 inch 4k
Screen Resolution
2k (2560 x 1440)
Hard Drives
WD_BLACK 1TB NVMe SSD with Heatsink 7300 mb/s
PSU
MEG Ai1300P PCIE 5 & ATX 3.0 PSU 1300 watts
Case
Phanteks (PH-ES614PTG_BK) Enthoo Pro ATX , Tempered Glass, Integrated RGB Lighting
Cooling
ENERMAX LIQMAXFLO 360mm A-RGB AIO CPU Liquid Cooler
Keyboard
Wireless logitech
Mouse
Wireless logitech
Win711 said:
Put seed phrase for bitcoin wallet on laptop with bitlocker and say "come get it". If it's uncrackable there is nothing to fear. ;)
Click to expand...
This is not the purpose of BitLocker.

BitLocker is fully unlocked while I'm using my computer or when using my portable backup SSD drives. Only when I'm not logged in to my PC and when my portable SSD drives are not connected is BitLocker activated.

If my laptop is stolen, my laptop SSD can only be unlocked with Windows Hello biometrics or the 256-bit encryption key. If my backup portable drives are stolen, they cannot be decrypted without a password or 256-bit encryption key.

What needs to be understood is that BitLocker is protection from physical data theft and nothing more.

BitLocker is only one part of my total backup and security strategy.
 

My Computers My Computers

System One System Two

  • At a glance

    Windows 11 ProIntel Series 3 Core Ultra X9 388H64GB LPDDR5x 9600 MT/sIntel Arc graphics B390 Panther Lake
    OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell XPS 16 DA16260
    CPU
    Intel Series 3 Core Ultra X9 388H
    Memory
    64GB LPDDR5x 9600 MT/s
    Graphics Card(s)
    Intel Arc graphics B390 Panther Lake
    Monitor(s) Displays
    16" 3.2K Tandem OLED Infinity Edge
    Screen Resolution
    3200 x 2000 16:10 236 PPI
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    1 Terabyte M.2 PCIe NVMe SSD
    Case
    Black Anodized Aluminum
    Cooling
    Vapor Chamber Cooling
    Mouse
    None
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    942 Mbps Netgear Mesh + 2 Satellites
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    Microsoft 365 subscription
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    Microsoft BitLocker
    Microsoft Copilot
    Dell Support Assist
    Dell Command | Update
    Macrium Reflect X subscription
    1Password Password Manager
    Amazon Kindle for PC
    Lightroom/Photoshop subscription
    Interactive Brokers Trader Workstation

  • At a glance

    Windows 11 ProSnapdragon® X Elite (12 Core) with Hexagon NP...32GB LPDDR5x 8448 MT/sIntegrated Adreno GPU
    Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Microsoft Surface Laptop 7
    CPU
    Snapdragon® X Elite (12 Core) with Hexagon NPU delivering 45 TOPS
    Memory
    32GB LPDDR5x 8448 MT/s
    Graphics card(s)
    Integrated Adreno GPU
    Sound Card
    Omnisonic speakers with Dolby Atmos spatial sound
    Monitor(s) Displays
    13.8″ PixelSense Flow touchscreen 120 Hz 600 NIT
    Screen Resolution
    2304 × 1536 (201 PPI), 3:2 aspect ratio
    Hard Drives
    1 TB PCIe NVMe Gen 4 SSD
    Case
    Black Anodized Aluminum
    Cooling
    Vapor Chamber Cooling
    Mouse
    None
    Internet Speed
    942 Mbps Netgear Mesh + 2 Satellites
    Browser
    Microsoft Edge (Chromium)
    Antivirus
    Windows Security (Defender)
    Other Info
    Microsoft 365 subscription (Office)
    Microsoft Office 365
    Microsoft OneDrive 1TB Cloud
    Microsoft Visual Studio 2026
    Microsoft Visual Studio Code
    Interactive Brokers Trader Workstation
    Lightroom/Photoshop subscription
    1Password Password Manager
    Microsoft Sysinternals
    Amazon Kindle for PC
    Microsoft BitLocker
    Microsoft Copilot
TraderGary said:
This is not the purpose of BitLocker.

BitLocker is fully unlocked while I'm using my computer or when using my portable backup SSD drives. Only when I'm not logged in to my PC and when my portable SSD drives are not connected is BitLocker activated.

If my laptop is stolen, my laptop SSD can only be unlocked with Windows Hello biometrics or the 256-bit encryption key. If my backup portable drives are stolen, they cannot be decrypted without a password or 256-bit encryption key.

What needs to be understood is that BitLocker is protection from physical data theft and nothing more.

BitLocker is only one part of my total backup and security strategy.
Click to expand...

Of course if laptop is running then it's even easier. I'm describing a travel situation, where you set your device down for a moment then it's gone.

So to test the security, put bitcoin on a laptop, power it down, then publicly announce there is bitcoin on the laptop. If no one can break bitlocker then you cannot lose your bitcoin and you're only out the cost of the laptop in exchange for knowing that bitlocker is indeed secure.
 

My Computer My Computer

At a glance

Windows 11Intel(R) Core(TM) i9-14900KCorsair 128GB (4x32GB) DDR5 5600MT/S CL40 Mem...Onboard
OS
Windows 11
Computer type
PC/Desktop
Manufacturer/Model
Intel
CPU
Intel(R) Core(TM) i9-14900K
Motherboard
GIGABYTE Z790 AORUS Elite X WIFI7
Memory
Corsair 128GB (4x32GB) DDR5 5600MT/S CL40 Memory Kit
Graphics Card(s)
Onboard
Sound Card
Onboard
Monitor(s) Displays
43 inch 4k
Screen Resolution
2k (2560 x 1440)
Hard Drives
WD_BLACK 1TB NVMe SSD with Heatsink 7300 mb/s
PSU
MEG Ai1300P PCIE 5 & ATX 3.0 PSU 1300 watts
Case
Phanteks (PH-ES614PTG_BK) Enthoo Pro ATX , Tempered Glass, Integrated RGB Lighting
Cooling
ENERMAX LIQMAXFLO 360mm A-RGB AIO CPU Liquid Cooler
Keyboard
Wireless logitech
Mouse
Wireless logitech
TraderGary said:
This is not the purpose of BitLocker.

BitLocker is fully unlocked while I'm using my computer or when using my portable backup SSD drives. Only when I'm not logged in to my PC and when my portable SSD drives are not connected is BitLocker activated.

If my laptop is stolen, my laptop SSD can only be unlocked with Windows Hello biometrics or the 256-bit encryption key. If my backup portable drives are stolen, they cannot be decrypted without a password or 256-bit encryption key.

What needs to be understood is that BitLocker is protection from physical data theft and nothing more.

BitLocker is only one part of my total backup and security strategy.
Click to expand...
This is the problem if they steal the computer.
hackaday.com

Beating Bitlocker In 43 Seconds

How long does it take to steal your Bitlocker keys? Try 43 seconds, using less than $10 in hardware. Encrypting your hard drive is good security. If you’re running Windows, the most popular s…
hackaday.com hackaday.com
 

My Computers My Computers

System One System Two

  • At a glance

    Linux: Debian, Kali-linux, Alma, Win: 7, 8.1,...i3, i5 and i7 From 2gen to 9th gen... Server ...
    OS
    Linux: Debian, Kali-linux, Alma, Win: 7, 8.1,2012R
    Manufacturer/Model
    HP Elitebook 840, AsusX53, Aspire E1-572. AsusUX32A, HP Pro3130mt+3010mt, HP Proliant ML150, 3xCustom-PC, i3, i5, i7
    CPU
    i3, i5 and i7 From 2gen to 9th gen... Server dual Xenon
    Hard Drives
    Sata, M.2, SAS

  • At a glance

    Retro: 2003server.XPpro, Win2000, Win98SE, Wi...Oldest intel 8088 up to P4 dual core
    Operating System
    Retro: 2003server.XPpro, Win2000, Win98SE, Win95, Win3.11, MS-DOS, IBM-DOS
    Manufacturer/Model
    Commodore, AST, Fujitsu, Compaq, etc etc. etc Around 15 desktops and 20 laptops in the collection
    CPU
    Oldest intel 8088 up to P4 dual core
    Hard Drives
    MFM, IDE, SCSI

My Computer My Computer

At a glance

Windows 10Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz16 GB Total: Manufacturer : Samsung MemoryTyp...NVIDIA Quadro K3100M; Intel(R) HD Graphics 4600
OS
Windows 10
Computer type
Laptop
Manufacturer/Model
HP
CPU
Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz
Motherboard
Product : 190A Version : KBC Version 94.56
Memory
16 GB Total: Manufacturer : Samsung MemoryType : DDR3 FormFactor : SODIMM Capacity : 8GB Speed : 1600
Graphics Card(s)
NVIDIA Quadro K3100M; Intel(R) HD Graphics 4600
Sound Card
IDT High Definition Audio CODEC; PNP Device ID HDAUDIO\FUNC_01&VEN_111D&DEV_76E0
Hard Drives
Model Hitachi HTS727575A9E364
Antivirus
Microsoft Defender
Other Info
Mobile Workstation
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