Creating Strong Passwords and Using a Password Manager
Practical ways to protect email, banking and admin panel accounts with long passphrases, a password manager and breach checks.
Aurora YazılımEditorial team
6 min read
To create a strong password, focus on length rather than complexity: choose a passphrase of at least 12–16 characters made of random words. Use a different password for every account, store them in a password manager, turn on two-step verification for important accounts and regularly check whether your address appears in breaches.
Why Is a Weak Password So Risky?
Attackers do not guess passwords one by one; they make a huge number of attempts per second with automated tools and use lists of millions of previously leaked passwords. Passwords like “123456”, a birth year, a team name or a company name sit at the top of those lists.
The bigger problem is password reuse. An email and password pair leaked from a shopping site is automatically tried on email, banking and social media accounts. This is called credential stuffing, and a single weak link can open every account.
The risk is even greater for businesses. When a website admin panel, e-commerce management, domain account or corporate email is taken over, customer data, reputation and sales are all damaged at once.
Another common weakness is default passwords. If the password given at setup is not changed on a modem, camera, printer or a newly installed software panel, the device can easily be taken over because these passwords are openly listed on the internet. When a new device or account is put into use, the first job should be to replace the default password with a unique, long one.
What Makes a Strong Password?
Current security guidelines, such as the authentication guidelines of NIST, the US standards agency, give length more weight than complexity rules. A short password packed with symbols is usually weaker than a long, random passphrase.
The same guidelines also advise against forcing periodic password changes without a reason, because this pushes users into predictable patterns like “Password2024!” and “Password2025!”. A password should be changed when there is suspicion of a leak.
- At least 12–16 characters; longer for admin accounts
- Contains no personal information (name, date of birth, license plate, phone)
- Is not a dictionary word, a sequence or a keyboard pattern (qwerty, 123456)
- Is not used on any other account
- Is randomly generated; patterns a person finds “clever” are often predictable
How Do You Create a Passphrase?
For the few passwords you need to memorize, the best method is a passphrase: combining four or five unrelated, randomly chosen words. A string like “pencil-olive-cloud-compass-blue” is both long and memorable. Do not use this example; use your own random words.
For passwords you do not need to memorize, have the password manager generate them directly. If you use the command line, you can also generate a random password with the commands below.
openssl rand -base64 24
python3 -c 'import secrets; print(secrets.token_urlsafe(20))'What Is a Password Manager?
A password manager is an app that stores all your passwords in an encrypted vault, fills them in automatically when you sign in to a site and generates strong passwords for new accounts. The key to the vault is a single master password; so the master password should be long, unique and protected with two-step verification.
Managers also give indirect protection against phishing: autofill offers the password only on the saved domain. If the password is not offered on a fake site, that is an early warning that the address is wrong.
What to Look for When Choosing
- End-to-end encryption, with data decrypted only on your device
- Apps for all the operating systems and browsers you use
- Support for two-step verification and hardware keys
- Secure sharing and permission management within the team
- Breach and reused-password alerts
Browser or Standalone App?
The built-in password managers of browsers and operating systems are far better than using none at all. If you need multiple browsers, different operating systems and team sharing, a standalone password manager offers a more flexible setup.
Checking for Password Leaks
Your password may have appeared in a data breach without your noticing. Services like Have I Been Pwned show whether your email address appears in known breaches. Many password managers and browsers also check your saved passwords against breach lists.
If your name shows up in a breach, do not panic; proceed in order: first change the password of that account, then of any other accounts where you used the same password. Be careful with emails after a breach that say “your account has been locked”; attackers turn those moments into opportunities. To tell fake messages apart, see our post on what is phishing.
Is a Password Enough on Its Own?
Even the strongest password is useless if it is typed into a phishing page or recorded by malware on the device. That is why a password needs to be backed by a second layer of verification. Two-step verification asks, in addition to the password, for a code from an app on your phone or a hardware key.
There are differences between verification methods too. A code by SMS is better than nothing but is open to attacks such as SIM swapping; a verification app and a hardware security key are stronger options. For the setup steps, see our guide on how to turn on two-step verification.
Do not forget recovery codes either. Keeping the backup codes given when you turn on two-step verification in a password manager or a safe place may be the only way to regain access to your account if your phone is lost.
A Password Policy for Businesses
In a company, password security cannot be left to individual habits. A short, written password policy makes sure everyone works by the same rules. This policy is also part of the technical and administrative measures expected under KVKK (Turkish data-protection law, comparable to GDPR).
- Give everyone their own user account; do not use shared accounts or shared passwords
- Choose a company-wide password manager and keep shared passwords in the vault
- Make two-step verification mandatory on email, admin panel and bank accounts
- Close a departing employee's access the same day and change shared passwords
- Ban sharing passwords by email, messaging apps or paper notes
- Hold a short security awareness training at least once a year
Website and Admin Panel Security
Password security is not only the users' responsibility; the site itself must be built correctly too. Good software stores passwords not as plain text but with strong hashing algorithms, limits consecutive failed logins and offers two-step verification for the admin panel. In custom software solutions built for a company, these rules are designed at the start of the project together with role-based authorization.
Asking about these features when choosing an e-commerce infrastructure or a corporate website prevents an account takeover down the road. The future of sign-in security, meanwhile, is taking shape in passkey technology, which removes passwords altogether.
Passwords are part of a broader security picture; they make sense when handled together with backups, updates and employee awareness. For this framework, you can read our post on what is cybersecurity.
Frequently Asked Questions
01What happens if a password manager is hacked?
In well-designed managers, the vault is decrypted only with the master password that you alone know; data stolen from the provider's server cannot be read on its own. That is why it is critical for the master password to be long and unique and for two-step verification to be on.
02Is it safe to write passwords in a notebook?
A notebook kept in a locked place at home can be safer against remote attacks than a digital notes file. But a password list kept at the office, by the monitor or in a wallet is open to physical access and is not suitable for team sharing.
03How often should I change my password?
The current advice is to change a strong, unique password not on a calendar schedule but when there is a sign such as a leak or a suspicious login. If your organization or industry has its own rules, follow them.
Long, unique passwords, a good password manager and two-step verification stop most account takeover attacks before they start. In software solutions built for your business, Aurora Yazılım designs secure sign-in and permission management from the start; we also take on the speed and performance management and maintenance of your existing site. For questions, you can write to us through our contact page.
