„Hackers don't break into systems. They simply log in.”
This statement has been circulating in cybersecurity circles for years, and in 2025, it gained full backing in data. As documented by the Verizon Data Breach Investigations Report 2025, compromised credentials are the number one vector for security breaches – accounting for 22% of all incidents.
For cybercriminals, stolen login data is the most convenient and cheapest way to gain full, hard-to-detect access to a corporate network. A legitimate login does not trigger alarms.
A password manager is not the answer to all threats. However, it neutralizes the specific mechanisms behind the most popular credential-based attack vectors. It does so in a way that no “paper” security policy or subsequent employee training can replace.
Why are passwords the primary target for cybercriminals?
The answer lies in scale and economics. The Verizon DBIR 2025 estimates that in 2024, 2.8 billion passwords were put up for sale or shared for free on cybercriminal forums, encrypted communicators, and darknet marketplaces. The ratio of cost to potential profit explains why credential-based attacks dominate the threat landscape.
To defend ourselves effectively, we must understand that criminals do not operate blindly. They exploit mechanisms that target the weaknesses of humans and systems alike. How does a password manager handle each of them?
Credential stuffing
“Do you happen to use the same password in multiple places? If so, you could be the next victim of an attack.”
Grzegorz Gąsiewski, SOC Department Director
This attack is based on a simple observation: people overwhelmingly reuse their passwords. If a user employs the same password for a private online store account and a corporate system, a cybercriminal will exploit it. Following a data breach from a poorly secured store, automated bots test those same logins and passwords across thousands of other services. Data shows that over half of the passwords created by users are duplicates.
It is precisely this margin of error that fuels credential stuffing. The attack accounts for 22% of all breaches, making it the most common single attack vector (Verizon DBIR 2025).
How a password manager protects against credential stuffing
The password generator within the manager creates long, random, and unique credentials for every single account – making them practically impossible to remember or duplicate. When every account has a different password, stolen data from a breach of service A does not grant access to service B. The threat factor drops to zero.
This is a mechanism that eliminates the arsenal of credential stuffing: it doesn’t block the attack at the network level; it simply renders the attack ineffective because every password is unique. An organization where a password manager is deployed and regularly used is essentially immune to credential stuffing.
Phishing
Fake emails and login pages are a classic tactic known to almost everyone, but phishing has evolved. Its effectiveness has spiked with the widespread adoption of generative AI – fake messages are linguistically flawless, and spoofed sites are visually indistinguishable from original banking or corporate systems. Phishing emails generated by AI achieve a click-through rate of over 50%. This is significantly higher than traditional phishing. A tired employee under time pressure can easily enter their data into a site that looks exactly like the original.
How a password manager protects against phishing
The autofill feature in the perc.pass password manager verifies the domain of the website where it is triggered. It compares it with the domain saved when the password was created in the system. If a user lands on a phishing page operating under the address your-bank-login.com instead of yourbank.com – the manager will not suggest filling in the data. No domain match = no autofill.
This mechanism is more reliable than human perception. A user under time pressure or suffering from attention fatigue might miss a typo or a subdomain in a URL. A password manager does not have these limitations. It operates in a binary, zero-one fashion
Read: How a password manager helps build employee awareness.
Brute force and password spraying
Brute-force attacks involve bombarding an account with thousands of password combinations per second. Their effectiveness stems from the fact that people create predictable passwords – containing names, birth dates, or popular words. Automated scripts crack the vast majority of such passwords in less than one second.
Discover: How to create strong passwords.
How a password manager protects against brute force
The password generator creates high-entropy credentials: random strings of characters pulling from a full set of letters, numbers, and special characters, with a length of 20 or more characters. Such a password does not contain any recognizable pattern.
Mathematics sides with the defenders here: cracking a random password of just 15 characters using the brute-force method on standard hardware would take… hundreds of millions of years. In a model where every employee uses generated passwords, a brute-force attack ceases to be an issue – the computational and time cost simply becomes unprofitable for the hacker.
Infostealer malware
These are programs designed solely to quietly steal saved logins and passwords directly from an infected computer. Hundreds of millions of records fall victim to them every year. Very often, it is these programs that provide hackers with the data that, a few days later, is used to carry out a ransomware attack within a company.
How a password manager neutralizes infostealers (and why the browser-built one is not enough)
Here we arrive at a critical distinction for IT Administrators. Managers built into browsers (such as Chrome) store data in an environment that infostealers know exactly how to communicate with, exploiting vulnerabilities in operating system mechanisms. Malicious code knows exactly where and how to look for this data.
In contrast, a dedicated password manager like perc.pass operates on a Zero-Knowledge architecture and utilizes its own robust encryption process (AES-256). Decrypting the vault requires entering a Master Password, which the service provider has no access to. To get to this data, malware would have to carry out a much more advanced and directly targeted attack against the architecture of the application itself, which drastically raises the bar for cybercriminals.
With perc.pass, you gain far more than just password protection
Breach monitoring: Integration with databases of compromised credentials (Have I Been Pwned and similar) allows you to receive regular alerts if a password appears in a public leak. This mechanism shortens the exposure window from weeks to hours.
Password strength auditing: The perc.pass administrator panel provides visibility into password security metrics within the system. This is diagnostic data that no firewall can guarantee.
Operation history as a forensic tool: In the event of any incident, system logs allow you to establish who, when, and from which device retrieved access to a given resource.
Remember! A password manager is the first line of defense, but not the only one.
If you want to check what security looks like with a password manager — test perc.pass during a free TRIAL.