Credential theft is still the easiest way into a corporate network—and attackers know it.
Despite years of warnings and proven defenses, many organizations continue to rely on passwords alone. The result is a growing wave of breaches that didn’t require sophisticated exploits—just a stolen username and password.
Passwords Still Matter—but They Aren’t Enough
Strong, unique passwords are essential. But once a password is compromised, systems can’t tell the difference between a legitimate user and an attacker. From that moment on, threat actors can move through systems undetected, accessing data and services as if they belong there.
This isn’t hypothetical. In 2024, attackers targeted Snowflake customers using credentials harvested by infostealer malware. Accounts without multi-factor authentication (MFA) were accessed easily—no vulnerabilities exploited, no complex techniques used. According to Mandiant, more than 165 organizations were affected, including well-known brands like Ticketmaster, Santander, and AT&T.
The same pattern reappeared in early 2026, when a single attacker compromised around 50 companies by accessing collaboration platforms such as ShareFile and Nextcloud. Once again: stolen credentials, no MFA, and widespread impact.
The Problem Isn’t Technology—It’s Adoption
MFA has been widely available for years, and its effectiveness is undeniable. Microsoft reports that MFA can reduce the risk of account compromise by over 99%. Yet adoption remains low.
A global survey by the Cyber Readiness Institute found that nearly two-thirds of small and mid-sized businesses still don’t use MFA, with global adoption sitting at just 35%. The most common reasons? Cost concerns, limited resources, and—most significantly—the belief that MFA isn’t a priority.
Crucially, this isn’t just an SMB issue. Many of the organizations affected in recent large-scale breaches had mature security programs but failed to enable MFA everywhere it mattered.
What MFA Delivers in the Real World
At its core, MFA ensures that a stolen password alone isn’t enough to gain access. But its benefits go further:
- Limits lateral movement: Each service or application requires separate verification.
- Supports risk-based access: Modern MFA evaluates context—device, location, network—and adapts authentication accordingly.
- Strengthens compliance: Regulations like NIS2, DORA, and PCI DSS increasingly require strong identity controls.
- Builds trust: Customers, partners, and auditors expect demonstrable protections for identity access.
MFA Is Foundational to Zero Trust
Zero Trust assumes no implicit trust—inside or outside the network. Identity becomes the new security boundary, and MFA is one of its core pillars.
Many organizations protect “critical” systems but overlook everyday tools like collaboration platforms, repositories, or project management apps. Attackers don’t aim for the strongest defenses—they look for the weakest link. One service without MFA is often enough.
Closing the Gap
For MFA to be effective, it must be easy to deploy broadly, centrally managed, and adaptable to risk. Solutions should focus on enabling consistent, context-aware MFA across environments while aligning with Zero Trust principles.
The takeaway is simple: attackers aren’t breaking in anymore—they’re logging in. Any account without MFA is an open door. In today’s threat landscape, MFA isn’t optional.
