Your financial data.
Our top priority.
Bank-level encryption, read-only access, and zero data selling. Built from day one to protect your information.
How we protect your data
Security is not a feature — it's the foundation everything else is built on.
256-bit Encryption
All data encrypted at rest using AES-256 and in transit using TLS 1.3. Your financial information is protected by the same encryption standards used by banks.
Plaid Integration
Bank connections are handled by Plaid, trusted by thousands of apps including Venmo, Robinhood, and Coinbase. FYN never sees or stores your bank credentials.
Read-Only Access
FYN can only read your transactions. We cannot move money, make payments, or modify your accounts in any way. View-only by design.
AWS Infrastructure
Hosted on Amazon Web Services with SOC 2 compliant infrastructure. DynamoDB for data storage, S3 for encrypted object storage.
Data Ownership
Your data belongs to you. Export everything anytime. Delete your account and all associated data with one click at /remove-account.
No Third-Party Selling
We never sell, share, or monetize your financial data. Revenue comes from subscriptions, period. Your data is yours alone.
How bank connections work
Your bank credentials never touch our servers. Here's exactly what happens.
Connect via Plaid
You connect your bank through Plaid's secure widget. FYN never touches your bank credentials — they go directly to Plaid.
Tokenized Authentication
Plaid authenticates with your bank using tokenized access. Your username and password are never stored by FYN or transmitted to our servers.
Read-Only Sync
Transactions sync to FYN in read-only mode. We receive transaction data only — no ability to initiate transfers or payments.
Encrypted Storage
All synced data is encrypted and stored in AWS DynamoDB with AES-256 encryption at rest. Access is strictly scoped to your account.
AI and your privacy
AI makes FYN powerful. Your privacy makes it trustworthy.
Private inference
AI queries are processed using Gemini with private inference. Your financial data is analyzed securely and never retained by AI providers.
No model training on your data
Your financial data is never used to train AI models. Your transactions, receipts, and conversations are exclusively yours.
Encrypted conversations
All AI conversations are encrypted and private to your account. No one at FYN can read your chat history.
Questions about security?
We take security seriously and are happy to answer any questions.
Contact us
Reach out at [email protected]
Your data, protected
Start free with bank-level security from day one. No credit card required.
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