business resources
S3 Backup Solutions: 7 Ways to Protect Your Buckets in 2026
28 Oct 2026
The lifecycle rule was meant to tidy up tmp/. Someone saved it with an empty prefix filter, so over the weekend S3 began expiring objects across the whole bucket, including three years of customer exports under exports/.
The on-call engineer stayed calm at first, because versioning had been on since the bucket was created. Then she opened the version history and found it bare, since the same rule also expired noncurrent versions after a day.
Versioning lives inside the bucket, so anyone allowed to rewrite the bucket's rules can take the safety net with them. Good S3 backup solutions keep a copy where that configuration can't reach and bring back one prefix from Friday without a full-bucket restore.
If you just want the answer:
Eon is the best S3 backup solution for cloud-first teams running AWS, Azure, and Google Cloud, since it discovers new buckets on its own, keeps copies in a vault production credentials can't open, and restores a bucket, prefix, or single object without S3 Versioning.
Most AWS teams keep AWS Backup as their native base layer, while Clumio by Commvault adds 15-minute recovery points for estates that live entirely on AWS.
Rubrik suits security-led teams, Druva suits teams that want a fully managed SaaS service, and Veeam and MSP360 make sense when their software already runs in your shop.
What native S3 features already cover, and where they stop
S3 Versioning keeps every version of an object, so an accidental overwrite or delete leaves the previous copy recoverable. Every version is billed as a full object, though, and all of them live in the same bucket and account as the original.
Replication copies new and updated objects to another bucket asynchronously, and Replication Time Control targets 99.9% of objects within 15 minutes. That speed cuts both ways, because a bad overwrite arrives just as fast, and replication keeps no point-in-time history to roll back to.
Object Lock stores versions as write-once-read-many, and in compliance mode no user, including root, can overwrite or delete a protected version. It needs versioning, governance mode can be bypassed, and new versions and delete markers still land on top, so it pairs best with a separate backup copy.
Is moving to Backblaze B2, Wasabi, or Cloudflare R2 a backup strategy?
Moving data there changes where your objects live. Backblaze B2, Wasabi, and Cloudflare R2 are S3-compatible storage services, which makes them handy destinations for a second copy that a backup tool writes on a schedule.
The seven options below protect the data already in your S3 buckets, with retention, restore points, and isolation from the source account. If you switch providers, the new buckets still need that protection (a bad delete script works just as well against any S3-compatible API).
1. Eon: cloud-native data protection that covers every bucket automatically, across accounts
It comes from the team that built CloudEndure (which AWS later bought), and it's designed as cloud data protection and recovery for cloud-first AWS, Azure, and Google Cloud environments. Connecting S3 takes one read-only IAM role, so there are no agents, appliances, or clusters on your side.
Good fit: Cloud-first teams with buckets spread across many AWS accounts and Regions, often next to Azure Blob Storage and Google Cloud Storage, where the honest answer to "which buckets are backed up?" is a shrug.
How it protects S3: Cloud Backup Posture Management (CBPM), a category the company created, keeps finding resources as environments change, classifies them, and applies backup policy with no manual tagging. The bucket a new team spins up gets covered without anyone filing a ticket.
Each backup captures objects individually and stores only changes after the first run, without leaning on source-bucket versioning at all. Restores pull a full bucket, one prefix, or a single object from any point in time directly out of backup storage, and that one copy can land in any Region.
Global Search covers every snapshot without an index to set up, so tracking down the three objects someone needs takes seconds. The copies sit in an immutable, logically air-gapped vault separated from the source account, which production credentials can't open.
Ransomware detection (add-on) checks every backup on arrival for mass overwrites, version flooding, and staged encryption, and it points you to the last clean recovery point.
At PDI Technologies, a convenience-retail and fuel software company, the platform covers nearly 600 AWS accounts and 350+ single-tenant vaults. Backup job success rose to 99.95%, up from the 80% its hand-built Lambda workaround managed.
Pricing: It's usage-based, billed per GB per month on protected storage, with no tier ladder and flexible spending commitments. There are no retrieval, restore, or egress fees.
The company cites up to 50% lower cost for S3 backup, and S3 Vault Cold Tier holds long-term copies at a lower rate.
What to plan around: You'll need a quote to budget, since there's no public list price, and Google Cloud Storage restores happen at the bucket level only. The reference list is also shorter than the incumbents can show, which matters if procurement wants five logos from your industry.
2. AWS Backup: set native backup policy across your AWS accounts and services
AWS Backup is the fully managed native service, and for most AWS teams it's the base layer that stays after a third-party tool arrives (I'd keep it there). Policies run from one management account across your AWS Organizations accounts, and Backup Audit Manager checks them against your controls.
Good fit: AWS-centric teams that want one native policy model for S3 alongside EBS, EFS, DynamoDB, and their other AWS services.
How it protects S3: Continuous backups let you rewind to any point in the last 35 days, as close as 15 minutes before now. Periodic snapshots (hourly, every 12 hours, daily, weekly, or monthly) can be retained for as long as 99 years.
Logically air-gapped vaults use compliance-mode Vault Lock and can be shared through AWS RAM, even with other organizations. Item-level restore handles up to five objects or folders per job, and since August 2026 you can read S3 backup data through S3 APIs without a restore.
GuardDuty Malware Protection can also scan S3 continuous backups.
Pricing: As of October 2026 in US East (Northern Virginia), S3 backup storage costs $0.05 per GB-month, $0.035 once it moves to the low-cost warm tier, and $0.0575 inside a logically air-gapped vault, plus $0.02 per GB restored.
Request and EventBridge charges come on top, and objects under 128 KB are billed as 128 KB, which adds up fast in a bucket full of tiny files.
What to plan around: AWS Backup for S3 requires versioning, so you pay for noncurrent versions in the source bucket too. Continuous backup depends on EventBridge notifications, and AWS says that if they're turned off the failure is silent, with no alert or failed job.
Copies of continuous backups lose point-in-time restore in another account or Region, and AWS documents Glacier Flexible Retrieval, Deep Archive, and SSE-C objects as out of scope.
3. Clumio by Commvault: add 15-minute recovery points to an AWS-only estate
Clumio, which Commvault acquired in 2024, now runs as Commvault's managed service for AWS data, with its own per-GiB pricing for S3.
Good fit: AWS-centered teams that want a managed service with a 15-minute RPO for S3 and the option to roll a bucket back inside their own account.
How it protects S3: Clumio offers two modes. SecureVault keeps a secondary copy outside the production AWS account, incremental after the first seed, while Backtrack runs in your account, needs S3 Versioning, and keeps the data there.
Continuous Backup checks for changes every 15 minutes and is required for point-in-time restore. Restores can target objects, prefixes, or entire buckets, using the latest or all versions, and land in the same bucket, another bucket, or one in a different AWS account and Region.
With Instant Access on SecureVault Standard, you can read a point-in-time backup over S3 APIs and skip the full restore.
Pricing: SecureVault Standard is $0.025 per GiB-month plus $1.50 per million managed objects each month as of October 2026, and Archive drops storage to $0.010 per GiB-month with the same object fee. Backtrack runs $1.50 per million objects a month on its own and comes free with SecureVault.
Restores add $0.040 per GiB for instant access or $0.09 per GiB retrieved, plus $0.025 per 1,000 API requests and data transfer out, so run the numbers on a bucket of small objects first.
What to plan around: Glacier and Glacier Deep Archive sit outside Clumio's documented S3 support, and Backtrack's first sync has to wait for S3 Inventory, which can take up to 48 hours. Backtrack copies stay in the production account, so the isolation comes from SecureVault.
Archive restores begin after 24 to 48 hours and carry a six-month early-deletion window, so keep that tier for copies you hope never to touch.
4. Rubrik: fold S3 into security-led cyber recovery
Rubrik Security Cloud added Amazon S3 protection in November 2023, and it fits best where the backup decision sits with the security team.
Good fit: Organizations standardizing on Rubrik for security-led cyber recovery and threat hunting that want S3 under the same SLA Domains as everything else.
How it protects S3: Backups are incremental forever after the first full, with SLA Domains at the account, bucket, or tag level for buckets in S3 Standard or Infrequent Access. Short-lived compute containers spin up for backup, restore, and indexing, then spin back down.
Under customer-hosted, compute and storage run in your own AWS accounts. Under Rubrik Managed, Rubrik runs the compute and holds backups in an encrypted, immutable vault logically isolated from your account. Either way, whole buckets or single objects restore to any Region in any account.
Threat Hunting runs file patterns, hashes, and YARA rules against backups to locate a likely clean snapshot, which fits S3 because it reads stored files (managed databases like RDS and Aurora never expose contents as files to scan).
Pricing: All three Rubrik editions (Foundation, Business, and Enterprise) go through sales as of October 2026. Threat Monitoring, Threat Hunting, and data classification come with Enterprise Edition, a three-year subscription covering software and support.
What to plan around: By design, Rubrik Managed takes data outside your AWS organization, and Rubrik's own guidance calls that the wrong fit when policy keeps backups inside your account boundary. It also offers fewer configuration options today.
Customer-hosted keeps everything inside your organization, and in exchange your team takes on the networking, IAM, and security posture around the deployment.
5. Druva: hand S3 protection to a fully managed SaaS service
Druva runs protection as a fully managed SaaS service ("No infrastructure or maintenance needed," in its words) across cloud workloads, endpoints, and SaaS apps, and it added Amazon S3 support in August 2025.
Good fit: Teams that already use Druva for endpoints and SaaS apps, or that want S3 protection with no infrastructure to run.
How it protects S3: Druva snapshots buckets on a policy through AWS APIs and stores the copies in Druva Cloud, outside your AWS organization. You can recover objects, buckets, or metadata with filters for size, type, or time, into the same or a different account or Region.
Data Lock (Enterprise and Elite) blocks anyone from deleting recovery points or changing policies, and Public Cloud plans include zero egress and unlimited restores.
Pricing: As of October 2026, Druva sells its Public Cloud tiers (Business, Enterprise, and Elite) by the deduplicated TB per month through quotes, using prepaid credits worth one TB-month each. Its help center says backups are suspended at 110% credit utilization, so watch the meter.
What to plan around: Druva's S3 documentation lists support for the S3 Standard and Intelligent-Tiering storage classes, so buckets that lean on other classes need a check first. Druva's October 2026 pricing page also makes cross-Region and cross-cloud backup Enterprise-and-up features.
The copy lives in a vendor-run environment, which buys clean isolation from your AWS organization and puts your recovery data in someone else's cloud. Some security teams love that boundary, and some will want a long meeting about it.
6. Veeam: back up buckets from the Veeam server you already run
Veeam built its name on VM and hypervisor estates (it supports 14 hypervisors as of version 13.1), and in Veeam Backup & Replication v13 an object storage backup job can use an S3 bucket as its source.
Good fit: Shops whose estate is still mostly on-prem and runs on VMs, already licensed through the portable Universal License, that want a handful of S3 buckets under the same backup server.
How it protects S3: A backup proxy pulls objects into whatever repository you pick, and an immutable repository gives you immutability. Restores cover entire buckets, the objects in a restore point, or several versions, and a point-in-time rollback only touches changed objects.
Single objects can go back to their original location or a new one, which covers the classic "someone deleted the config file" request.
Pricing: Each Veeam license instance covers 500 GB of protected object data, and Veeam Data Platform meters licenses per workload. Veeam Data Cloud Vault, a managed target, lists Archive at $4.50, Foundation at $14, and Advanced at $24 per TB per month as of October 2026.
What to plan around: You run the backup server, proxies, and repositories yourself, which makes sense when that infrastructure already exists and adds cost when it doesn't.
Veeam's docs list prefix restores from the long-term repository as unsupported, and the job's documented scope excludes Glacier Flexible Retrieval, Deep Archive, and SSE-C objects.
7. MSP360: copy a few buckets to another cloud on a schedule
MSP360's S3 page is about backing up servers and desktops to S3, and the piece that treats S3 as a source is the Cloud to Cloud plan type in MSP360 Backup for Windows.
Good fit: Small teams and MSPs already running MSP360 that want a second copy of a few buckets in another provider's cloud, on a schedule, for a low per-computer price.
How it protects S3: A plan points at a source cloud account, picks buckets, folders, or files, and runs on a schedule, such as a weekly copy to Microsoft Azure. Each plan keeps a set number of versions per file, purges older ones, and can AES-encrypt contents before upload.
A copy at a different provider guards against losing the AWS account itself (everyone else here uses a separate vault account, and MSP360 uses a separate company).
Pricing: MSP360 Backup runs $29.99 a year per Windows computer, $109.99 for Windows Server, and $179.99 for Ultimate as of October 2026, and storage is billed on top. Confirm that your edition includes Cloud to Cloud plans before buying.
What to plan around: Everything runs from a Windows agent, and retention is set per file version, so it fits a few buckets far better than hundreds of accounts and millions of objects. I'd treat it as a budget second copy that sits next to a primary S3 backup.
Three things to set up this week, before a lifecycle rule tests you
I'd start with discovery, because a backup policy only protects the buckets it knows about. In a September 2026 census of 53,709 production cloud resources across 78 companies, 61.2% had no recovery copy, and only 14% of AWS production resources carried a production tag.
Next, separate the vault account, so the recovery copy sits where production credentials and production lifecycle rules can't reach it, under a lock no single admin can shorten.
Then rehearse one restore: pick a prefix from last week, bring it back into a different bucket, and time it. If that takes a ticket queue and an afternoon (or a call to the one person who remembers the IAM role), you've found your real recovery time before an incident did.
FAQ
What's the best S3 backup solution for a company with hundreds of buckets?
Eon is the best fit for hundreds of buckets across many AWS accounts, because it discovers and classifies new buckets and applies backup policy without manual tagging. AWS Backup run through AWS Organizations is the native option, as long as every bucket has versioning on.
How often should S3 buckets be backed up?
Match the cadence to how fast the bucket changes: AWS Backup's continuous mode restores to within the last 15 minutes over 35 days, which suits busy buckets, while daily backups usually cover slow-changing ones. Either way, keep retention longer than it takes someone to notice a bad delete.
Can an S3 lifecycle rule delete my backups?
Yes, if the backups sit in a bucket the rule covers, since lifecycle rules can expire both current and noncurrent versions. Recovery points held in a separate backup vault follow that vault's retention policy, which is why a vault outside the source account is the safer home.
