Recommended Free Tools
Credential stuffing is an automated attack that tries usernames and passwords exposed in one breach on other websites. It can work when you reuse a password. Protect your accounts with a unique password for each service, stored in a password manager, and turn on multifactor authentication (MFA)—preferably a passkey or phishing-resistant FIDO/WebAuthn method when available.
What is credential stuffing?
In a credential-stuffing attack, someone uses username-and-password pairs obtained from a breach or other disclosure and submits them automatically to sign-in pages on other services. The attacker is counting on people reusing passwords: if a password leaked from one site still works elsewhere, the other account may be taken over.
Credential stuffing is different from two related login attacks:
- Brute force: trying many possible passwords against one account.
- Password spraying: trying one or a small number of passwords across many accounts.
The tactics differ, though some of the defenses overlap. Once an attacker gets into an account, possible harms depend on what the account can do. In e-commerce, NIST describes risks such as fraudulent purchases, gift-card purchases or redemption, and misuse of loyalty programs. A compromised email account may also put other accounts at risk through password-recovery flows.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
How can you protect your accounts?
1. Use a different password for every account
A unique password prevents a password exposed by one service from being replayed as the same secret on another. Use a password manager to generate and store distinct passwords for accounts that still use passwords; NIST highly recommends password managers for this purpose. NIST’s consumer password guidance also points users toward passkeys where available.
2. Turn on MFA, especially for important accounts
MFA asks for an additional authenticator beyond the password, so a stolen password alone may not be enough to sign in. Prioritize email and financial accounts, and enable it on social media, online stores, and other services that offer it. CISA’s practical advice is: “Any MFA is better than no MFA.” — Cybersecurity and Infrastructure Security Agency, More than a Password.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
3. Prefer passkeys or phishing-resistant MFA when supported
Choose a passkey or FIDO/WebAuthn method when the service supports it. CISA identifies FIDO/WebAuthn as phishing-resistant because it can prevent authentication from being used on a fake site. If those options are unavailable, another MFA method is generally a better barrier than password-only access, but methods do not provide equal protection; text-message codes have weaknesses. Check that you understand how to recover the account if you lose access to the device or authenticator.
4. Change passwords that may have been exposed
If you suspect a password has been exposed, change it on every account where you reused it. Give each account its own new password. OWASP recommends resetting passwords when compromise is suspected rather than forcing routine changes without evidence of compromise. OWASP’s 2025 authentication guidance covers this approach.
Free tools Windows power users keep installed
One-click scans. No signup required.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
5. Check activity and recovery details
Review recent account activity and look for unfamiliar sessions, sign-in alerts, recovery details you did not change, or actions you did not take. If you cannot sign in, use that provider’s official account-recovery process; the steps vary by service.
What should you do if a password may be compromised?
NIST’s consumer guidance says, “The first thing you should do is add multifactor authentication.” Pair that with unique passwords: MFA adds another sign-in barrier, while replacing a reused password prevents the same exposed secret from opening other accounts.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
- Change the exposed or reused password on every account where it was used.
- Set a different new password for each account, preferably generated and stored in a password manager.
- Enable MFA, beginning with email and financial accounts; choose a passkey or FIDO/WebAuthn option when available.
- Review sign-in activity, active sessions, and recovery details, and use the service’s official recovery process if you are locked out.
How can services defend against credential stuffing?
Preventing account takeover is also the service operator’s responsibility. OWASP recommends that services use MFA, check new or changed passwords against lists of breached passwords, and limit or progressively delay failed login attempts. Logging failures and alerting administrators to suspected automated attacks can help operators respond.
These controls need careful design. For example, a poorly designed lockout can let an attacker deny service to legitimate users by repeatedly triggering it. OWASP’s Credential Stuffing Prevention Cheat Sheet discusses defenses for operators.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsBest Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
What the available figures do—and do not—show
NIST’s consumer password page reports that the Identity Theft Resource Center recorded more than 3,000 data breaches in 2024, potentially exposing hundreds of millions of online accounts. That figure provides breach context; it is not a count of credential-stuffing attempts or successful account takeovers. The sources cited here do not establish a recent, directly comparable share of login traffic or account takeovers attributable to credential stuffing.
For further technical context, NIST NCCoE’s Multifactor Authentication for E-Commerce, SP 1800-17 Volume B describes the e-commerce risks of account takeover. NIST’s SP 800-63B provides digital identity and authentication guidance.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
