Choosing secure password sharing for vendor management
Vendor relationships are a normal part of running any business. Accountants need access to your financial software. IT consultants need to log into your infrastructure. Marketing agencies need social media credentials. Developers need staging environment access. Each of these relationships creates a moment where credentials must move from your organization to an external party — and that moment is a risk.
The vendor access problem
Unlike internal employees, vendors exist outside your security perimeter. You can't control their device security, their password hygiene, or the tools they use. When you share a credential with a vendor, you're trusting not just that individual, but their entire organization's security posture.
Consider the chain of exposure: you email a credential to your accountant. Your accountant's email provider is breached six months later. That credential, sitting in an inbox, is now compromised. You may never know it happened.
The problem compounds when vendor relationships end. Offboarding a vendor is often less formal than offboarding an employee. Credentials that were shared months ago may still be valid and accessible, even though the relationship has ended.
What good vendor credential management looks like
Secure vendor access management doesn't require enterprise identity infrastructure. For most small and mid-sized businesses, a practical approach looks like this:
Principle of least privilege. Give vendors access only to what they need, using accounts created specifically for their engagement. Avoid sharing your primary admin credentials.
Time-bounded access. Where possible, set credentials to expire when the engagement ends. For systems that don't support this natively, schedule a credential rotation when the vendor relationship concludes.
Secure transmission. When you do share credentials, use a channel that doesn't leave a permanent copy. A one-time link that expires after use eliminates the lingering vulnerability of credentials sitting in email threads.
Documentation. Keep a record of which vendors have received access to which systems. This makes offboarding systematic rather than a scramble.
Choosing the right sharing tool for vendor scenarios
When evaluating tools for vendor credential sharing, prioritize:
No account required for recipients. Your vendors shouldn't need to sign up for a new service just to receive credentials. This creates friction, introduces another account that can be compromised, and is often a deal-breaker for vendors who work with multiple clients.
Expiry controls. The ability to set a specific expiry date or time ensures credentials don't remain accessible indefinitely after delivery.
One-time access. Once a credential link has been opened, it should become inactive. This prevents the link from being used again if it ends up in the wrong hands later.
Simplicity for the sender. If the tool requires multiple steps or configuration, it won't be used consistently. The fastest path to your team ignoring a security tool is making it inconvenient.
Practical scenarios
Onboarding a new IT consultant. Rather than emailing server credentials, generate a one-time link with a 24-hour expiry. The consultant gets the credentials they need; the link self-destructs after first use.
Sharing social media access with a marketing agency. Create a time-limited link that expires after the agency retrieves the credentials. After their contract ends, rotate those credentials.
Giving a developer access to a staging environment. Share staging credentials via a one-time link. When the project concludes, rotate the staging password — you're not tracking down an email thread to figure out where the credentials were sent.
The goal isn't zero risk — it's controlled, documented, and time-bounded risk. For most organizations, switching from email-based credential sharing to one-time links is the single most impactful improvement they can make to their vendor security posture.
