Top 5 Most Secure Cloud Storage Solutions


Dani Nolan


2019 January 16th


As years go by, fewer and fewer people keep all of their information only on their computers and external drives. And for a good reason - cloud storage became a cheaper, more convenient solution for everyone to keep their files on.

However, with both individuals and businesses keeping their crucial information on the internet, it's also become very important for it to be safe.

How can you both get ultimate convenience and avoid falling victim to a big hacking accident? For that, you will need encrypted cloud storage to keep your data safe.

Here's the list of the most secure Cloud storage platforms out there:

  • pCloud (Best overall security features)
  • (Best privacy policy)
  • Tresorit (Best for setting individual user access)
  • SpiderOak (Largest selection of plans to choose from)
  • Oracle (Best for enterprises)

1. pCloud

Price: from free to $350 (one-time payment for lifetime access)

Recommended for: users who want full control of their encryption.

most secure cloud storagepCloud is my top pick as the safest cloud storage solution, simply because it has a different approach compared to most providers.

Instead of securing all your data, you can choose which files should be encrypted.

This is a great way to keep your personal and professional life separate - for example, you can encrypt important work files and leave your photo albums open to access instantly. 

Every pCloud account comes with the most advanced 256-bit encryption from the moment you upload your folders. Additionally, pCloud saves 5 copies of all your files on different servers, adding an extra layer of protection to your data.

most secure cloud storage

What I like most about pCloud is that you can access regular reports that tell you if anyone’s been snooping by showing you who accessed what and when. There’s also an option for an extra layer of protection thanks to the solution’s crypto feature. This allows you to encrypt your files on your end, thus giving you full control of your folders.

Pricing is another aspect of pCloud that makes it stand out from the crowd. Instead of paying a monthly or yearly subscription, you can make a one-off payment of $175 or $350 for a lifetime subscription to the service. You can also go for the free plan which gives you 10GB of space.


  • Full control of encryption
  • 256-bit AES encryption
  • Full reports
  • Crypto feature


  • No plans for larger businesses


Price: from free to $49/year

Recommended for: business users in the US, Canada, the UK, or Europe.

most secure cloud uses end-to-end encryption to protect your files so that you’re the only one that can access them. But how is this different to other solutions, you ask?

Well, many other platforms can access, read, and scan your files as well - Sync promises that it can’t. And aside from protecting your files, Sync has a strict privacy policy and the company promises not to collect, sell, or share your personal information or usage with third-parties, including advertisers.

What I like most about is that it complies with global data privacy laws- this means that no matter where you are in the world, Sync is safe to use. It has EU and UK GDPR as well as Canadian and USA compliance built-into its system.

most secure cloud storage pricingAside from the two-factor authentication and granular user permissions, Sync also has an enterprise-grade infrastructure where it replicates data across various data center locations with SAS RAID storage.

Also - you can get Sync for free (if you only want 5GB of storage).

However, I suggest you look at the company’s business plans - these range from $8 for individual subscriptions, or you can pay between $5 and $15 per user depending on the storage space you need.


  • End-to-end encryption
  • Compliance with global data protection laws
  • Airtight privacy policy
  • Replicates data across various data center locations


  • Few personal plans to choose from
  • Limited free plan

3. Tresorit

Price: from free to $24/month

Recommended for: businesses who want to set specific user restrictions.

most secure cloud storageBased in Switzerland, Tresorit offers some of the best cloud storage security for businesses because it comes with zero-knowledge encryption with the option to implement user restrictions.

By creating policy templates for groups of users, you can set different rules, thus giving you full control over who gets access to what in your cloud. Tresorit also comes with two-factor authentication.

What I believe makes Tresorit unique from other solutions on this article is its allowed device list. Normally, when it comes to entering an online account, you just need its credentials. But with Tresorit, you can fully restrict access based on the user's device - so if it’s not a device you recognize, it won’t be able to access your files.

Tresorit has a free account that offers 5GB of storage space. You can also choose between various plans for both individuals and teams. Individual plans start at $24 a month and team ones at $12 a month per month, per user.

most secure cloud storage


  • Zero-knowledge encryption
  • Allowed device list
  • Ability to revoke access from users remotely


  • Limited free plan
  • Very expensive plans for individuals

4. SpiderOak One Backup

Price: from $5/mo to $25/mo

Recommended for: businesses who want to host their own servers.

most secure cloud storageIf you use multiple devices to access your more sensitive files on the cloud, SpiderOak may be your best option as it offers encrypted cloud storage to all users.

Instead of storing meta-data from your files on its servers, it stores it on your computer. So, every time you change devices to access your files, SpiderOak encrypts the metadata before it travels to a new device. This is a great way to prevent malware and hackers from getting their hands on your files.

Not only this, similarly to Tresorit, SpiderOak gives you a high level of control over user groups, thanks to its management console. As a team administrator, you can control folder creation and deletion as well as user privileges. What really makes the solution stand out is its local options, though - you can use all SpiderOak’s capabilities but also have full control of the server by hosting it at your preferred location.

most secure cloud storage

Despite the many features above, unfortunately, SpiderOak doesn’t come with two-factor authentication.

That said, the solution has a choice of 4 competitive plans all which come with individual storage allowances and their own unique price tag. Each plan allows you to back up as many devices as you like to one account. And if you want to test the waters before jumping in head first, you’ll be happy to know that you’ll get a 21-day free trial.

most secure cloud storage


  • Centralized team management
  • Option to host servers locally
  • Stores meta-data on your device


  • No two-factor authentication
  • No free plan

5. Oracle

Price: no fixed price ('pay as you go' model)

Recommended for: larger enterprises with a lot of data. 

most secure cloud storageIf you want a solution that can protect your personal and business files, as well as those of your entire enterprise then look no further than Oracle.

This American company uses zero-knowledge encryption to ensure that you and whoever you grant access to are the only ones that can view, share, and download your files and folders. With Oracle, authentications access is built-into the platform so you don’t have to worry about any unwanted eyes snooping around.

It also offers secure file sharing, even for people that don’t have authorized access to your account. This is a great feature if you want to share files with a client without giving them full access to your database. Additionally, Oracle lets you password protect and encrypt any sensitive data you may have.

most secure cloud storageOracle isn’t for everyone, mainly because of its price tag. Also, the platform doesn't make its pricing very easy to understand.

Instead of offering a set monthly or yearly price, you pay as you go.

This means that if you don’t keep track of your usage, you could end up with a hefty bill at the end of each month. That said, the solution does give you $300 of free credit for up to 3500 hours of Oracle cloud usage.


  • Enterprise-grade cloud solution
  • Authentications access built-into the platform
  • Option to share with people who aren’t part of your account


  • Considerably more expensive depending on how much you use
  • Unclear pricing plan

Which is The Most Secure Cloud Storage Solution Out There?

Choosing the safest cloud storage solution depends on whether you’re using it for personal or business use. Here’s my verdict:

  • pCloud is the best value for money because of its lifetime subscription options;
  • is the best solution for global compliance;
  • Tresorit is the best solution for managing user access remotely;
  • SpiderOak is best if you want to host your own local servers;
  • Oracle is the best solution if you want to grant access to users who aren’t part of your account;

It's important to remember that, as well as choosing the most secure cloud storage solution, you also have to keep your individual needs in mind. In other words, make sure the service comes with the right amount of storage and the right price tag.

Did I forget any providers? If you feel you’ve found the most secure cloud storage solution and it’s not in this list, please let me know by sharing a comment below.


Written by Dani Nolan

An experienced content professional with a creative mind. If I'm not writing, you can probably find me in the backyard playing with dogs or at some weird art show.

Disclosure :

Our reviews include affiliate links and if you choose to buy a product, you help support the running of this blog. However, we are not sponsored by any of the providers so we can keep our reviews honest and transparent. Read more...
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User comments

chris picture

2019 October 29th

hi guys, how about mega ? I use it since years and its very safe. and the business plan for 30 us have unlimited storage. yes its plenty times very... Read more

hi guys, how about mega ? I use it since years and its very safe. and the business plan for 30 us have unlimited storage. yes its plenty times very slow but the backend is fantastic ...

Tyler Clokey picture
Tyler Clokey

2019 September 13th

Hello Dani, thank you for the above summary. I do have two questions for you. Can you share with me how Carbonite compares with pcloud and In addition, do... Read more

Hello Dani, thank you for the above summary. I do have two questions for you. Can you share with me how Carbonite compares with pcloud and In addition, do you have any suggestions for data backup providers providing the same high security as discussed above for pcloud and offering unlimited data backups? And, is there any reporting for those data backup providers that would identify missing files from prior backups, thus allowing for data restore for those missing files? Thank you in advance for any suggestions that you may be able to offer!

Kate Herrod picture
Kate Herrod

2019 August 2nd

Dani, what do you think of Teamwork Projects? Is it secure? Thanks.

Dani, what do you think of Teamwork Projects? Is it secure? Thanks.

    Joey B

    2019 August 20th

    How about google or microsoft onedrive or icloud or mega? Are they not secure?

    How about google or microsoft onedrive or icloud or mega? Are they not secure?