Mandatory MFA for All Administrative Access
Passwords alone are obsolete. Every admin dashboard, treasury panel, cloud console, exchange backend, Kubernetes cluster, CI/CD platform, and wallet management system must require strict Multi-Factor Authentication (MFA). Crucially, you must abandon SMS and Email OTP for internal operations. These legacy methods are highly vulnerable to SIM swapping, mailbox compromise, session hijacking, phishing, and MFA fatigue attacks. Instead, upgrade your team to robust standards like App-based TOTP (Google Authenticator, Microsoft Authenticator, or Authy). For anything involving treasury-level operations, hardware-based MFA shouldn't just be an option, it must be mandatory.

Implement Zero Trust Access Controls
Modern infrastructure must operate under a strict "never trust, always verify" model. You can no longer assume a request is safe simply because it originates from inside your network. Every single internal request must require immediate authentication, authorization, logging, and verification. This standard must apply across the board: from your internal APIs and service-to-service communication, down to your admin tooling and daily employee access. To effectively enforce this, you need to deploy robust controls like Single Sign-On (SSO), device verification, conditional access policies, geolocation monitoring, impossible-travel detection, and strict session expiration.

Monitor Privileged Accounts Aggressively
High-risk accounts demand constant oversight and should immediately trigger alerts for any suspicious behavior. Your system must be configured to flag login attempts from unusual locations, impossible travel patterns, sudden privilege escalation, failed MFA attempts, excessive API activity, unusual withdrawal requests, and abnormal wallet interactions. When these anomalies occur, time is critical. Your security team needs to know instantly, which means they should be receiving automated Slack, PagerDuty, SMS, or SIEM alerts within minutes of the event.