Security guide · 6 min

AI memory: local, Cloud, or both?

The debate is often boiled down to "local is safe, Cloud is convenient." The reality is more nuanced: each model carries different risks. Here is an honest decision table to help you choose without dogma.

The real comparison

What each model protects, and what it doesn't.

CriterionLocal memoryCloud memory
Attack surfaceYour machine onlyYour machine + the provider's infrastructure
Large-scale leakImpossible without physical compromisePossible via a provider breach
Hardware lossTotal loss without a backupNative restore
Multi-deviceManual copy or a sync setup to buildNative
Team sharingSiloed, must be re-sent manuallyCentralized access control
GDPR, transfers outside the EUNo third-party processingDepends on the provider's region
Operating costZero serversRecurring billing
EncryptionDepends on your diskDevice-side encryption at Tramya, otherwise variable

Three scenarios

Who chooses what?

Independent developer, one workstation

Pure local. Disk encryption + a Time Machine backup or equivalent. No need for Cloud until you run multiple machines.

Freelancer on 2-3 machines

Local + selective Cloud. Client projects stay local; personal multi-machine projects go to encrypted Cloud. The rule: Cloud is never imposed by the client without a clause.

Team of 5+

Cloud for shared context, local for drafts. Each member keeps their personal history on their own machine; only the project context goes to Cloud, with per-seat access control.

The classic trap

"Encrypted Cloud" means little without the details.

Many tools advertise "encryption in transit and at rest." That says nothing about who holds the key. Three questions to ask every provider:

  1. Who generates the key? You (device-side) or the provider?
  2. Who can restore it? If the provider can, they can also be compelled to.
  3. What happens if you lose it? An answer like "we'll reconstruct it" is a red flag.

Tramya generates the key device-side, never stores it, and cannot reconstruct it. Keep it in a password manager.

Frequently asked questions

Is local memory really safer?

Yes, if your machine is encrypted and backed up. The attack surface is limited to your machine; there's no large-scale third-party breach to worry about.

So what's the point of Cloud?

Multi-machine portability, team sharing, and a backup that survives a stolen machine. At Tramya, Cloud is encrypted device-side before upload.

Is local GDPR-compliant?

No third-party processing means no international transfer. You remain responsible for disk encryption and backups.

Can you mix the two?

Yes, project by project in Tramya. It's the recommended setup for most freelancers.