This provides an extra level of privacy over other types of encryption, which are more vulnerable to snooping.
Without this key, anyone looking at the data will only see a mess of numbers and letters.
Basically, most services or apps that handle sensitive data can benefit from ZKE.
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What Does Zero-Knowledge Encryption Do?
Without one, the message will just appear as a random jumble of letters and numbers.
The key will return the data to its original form.
Encryption plays a big role in cybersecurity, and there are many encryption methods out there.
Decryption keys are generally stored on the servers of the service transmitting the data.
In many cases, this is safe enough.
Zero-knowledge encryption gets around these problems by storing decryption keys exclusively on user devices.
Hackers or governments wont be able to get a hold of them either.
There is one major drawback when it comes to using ZKE though.
Depending on the service, you may even lose access to your account.
Luckily the best services offer solutions.
For example, with 1Password, your decryption key is essentially your master password.
If you forget it, you cant open your vault.
What Services Use Zero-Knowledge Encryption?
For example, take a traditional antivirus.
So eventhe best antivirusesforgo zero-knowledge encryption.
Do I Need Zero-Knowledge Encryption?
I strongly prefer messaging apps that use ZKE, but it might not matter to you.
It all depends on the pop in of messages you send and how much you value privacy and security.
Cloud storage services and other services vary.
Its theoretically safer, but many products are secure enough without it.
If you dont store lots of sensitive files in the cloud, you may be fine without ZKE.
It depends on how much you value your privacy (and how many secrets you have).
Password managers benefit the most from ZKE, since passwords are the very definition of sensitive data.
A company being able to see all of your passwords simply isnt safe.
While not everyone uses ZKE, top password managers like 1Password do.
Most mainstream cloud storage services do not use ZKE, which could be a security problem for you.
This includes OneDrive, Google Drive, and even Dropbox.
Thats not to say any of those are unsafe they simply lack this one feature.
VPNs dont need ZKE.
As I explained above,the best VPNsuse a different security feature called a no-logs policy.
Other security products, like antiviruses, also rarely use ZKE.
Just note that most security products are not currently using zero-knowledge encryption.
Overall, you should consider your individual security needs when it comes to zero-knowledge encryption.
Its more secure than traditional encryption, but its not without some issues.
In my opinion, its most vital in tools like password managers.
Frequently Asked Questions
Do most VPNs use zero-knowledge encryption?
No, most VPNsdo not use zero-knowledge encryption, but that doesnt mean theyre unsafe.
VPNs likeExpressVPNhave their no-log policies independently audited to prove that the company has no way to access your data.
How does zero-knowledge encryption differ from regular encryption?
The main way it differs is that a company cannot see your encryption key.
Normally, the company keeps a copy of your decryption key.
Its not sinister it helps with account recovery and support.
Is a product unsafe without zero-knowledge encryption?
It depends, but for the most part no.
This key in of encryption can only be used when the company doesnt need to process your data.
To illustrate the difference, lets use two products at the top of their field.
1Passwordis a secure password manager that uses zero-knowledge encryption.
This way, it doesnt have any logs of your passwords or data that you store within the app.
If the company gets hacked, theres no way your passwords can be seen.
ExpressVPNis a great VPN, but it doesnt use ZKE.
That doesnt make it less safe though, because it employs something called a no-logs policy.
This jot down of policy restricts companies from logging your data.
Can I have my data stolen if Im using zero-knowledge encryption?
Yes, data theft can still occur, even using ZKE.
Youre still vulnerable to phishing scams, data-stealing malware, and having a weak password.
I highly encourage you to use acomprehensive antivirussuite to account for these other threats.