finta-security-basics

# Finta Security Basics ## Overview Finta manages fundraising pipelines containing investor contact information, term sheet details, valuation data, cap table snapshots, and deal room documents. A breach exposes confidential fundraising strategy, investor relationships, and financial terms that could damage competitive positioning. Protect API credentials, deal room access controls, and any integration that syncs investor data to external CRMs or spreadsheets. ## API Key Management ```typescript function createFintaClient(): { apiKey: string; baseUrl: string } { const apiKey = process.env.FINTA_API_KEY; if (!apiKey) { throw new Error("Missing FINTA_API_KEY — store in secrets manager, never in code"); } // Finta keys access investor contacts and financial terms — treat as highly sensitive console.log("Finta client initialized (key suffix:", apiKey.slice(-4), ")"); return { apiKey, baseUrl: "https://api.trustfinta.com/v1" }; } ``` ## Webhook Signature Verification ```typescript import crypto from "crypto"; import { Request, Response, NextFunction } from "express"; function verifyFintaWebhook(req: Request, res: Response, next: NextFunction): void { const signature = req.headers["x-finta-signature"] as string; const secret = process.env.FINTA_WEBHOOK_SECRET!; const expected = crypto.createHmac("sha256", secret).update(req.body).digest("hex"); if (!signature || !crypto.timingSafeEqual(Buffer.from(signature), Buffer.from(expected))) { res.status(401)...