Tag feed

#captcha

153 posts2 followers

Explore Hashnode

Alternatives

Trending tags this week

BSBassem Shahinbshahin.hashnode.dev6d ago · 5 min read

Cloudflare cf_clearance: why it expires and how to stop the re-challenge loop

Cloudflare cf_clearance: why it expires and how to stop the re-challenge loop You solve the Cloudflare challenge, get a cf_clearance cookie, make your next request — and Cloudflare throws you straight

0

BSBassem Shahinbshahin.hashnode.devJun 5 · 6 min read

Cloudflare Turnstile in Playwright: Why Your Tests Stall and How to Solve It in 8 Lines

If you're running Playwright or Selenium against any site behind Cloudflare, you've already met Turnstile. It's the new "managed challenge" widget Cloudflare started shipping in 2023, and it now appea

0

MAMubarak Alhazanpoly4.hashnode.devMay 29 · 11 min read

Why Rate Limiting Alone Won't Stop OTP Abuse — A Real Incident Breakdown

The Attack That Looked Like Normal Traffic On a perfectly normal Tuesday morning, while the team was getting into their usual flow, we quietly noticed that our SendGrid email delivery was behaving str

1

B

WBWiktoria Blomgren Strandbergpentesting-dvwa.hashnode.devApr 18 · 27 min read

Insecure CAPTCHA in DVWA

1 Introduction In this post, the Insecure CAPTCHA vulnerability in the Damn Vulnerable Web Application (DVWA) is described. The objective for attacks on all levels is to bypass the poor CAPTCHA system

0

AAlterLabalterlab.hashnode.devApr 6 · 8 min read

How to Rotate Proxies and Solve CAPTCHAs at Scale in 2026

The Problem With Building Your Own Proxy Infrastructure You spin up a scraper. It works for 200 requests. Then the target site starts returning 403s. Then CAPTCHAs. Then your IP gets banned entirely. The standard response: buy a proxy list, wire up r...

0

CCustodiapagebolt.hashnode.devMar 12 · 3 min read

Why Your Agent Can't Read Captchas (And Why That's Actually Good Security)

Why Your Agent Can't Read Captchas (And Why That's Actually Good Security) Your agent hit a captcha and stopped. You designed it to automate form submission. It filled the form. Clicked submit. Then a captcha appeared and the agent had no idea what t...

0

LTLưu Tuấn Anhblog.fiscybersec.comMar 1 · 9 min read

CAPTCHA Giả Đang Đánh Lừa Hàng Nghìn Người Dùng: Sự Thật Đằng Sau ClickFix

ClickFix về DNS đánh lừa người dùng chưa kịp lắng xuống thì một chiến dịch mới lại tiếp tục nổi lên trong tháng 02 năm 2026 vừa qua. Chiến dịch này cũng dựa hoàn toàn vào yếu tố con người để khai thác

0

LTLưu Tuấn Anhblog.fiscybersec.comMar 1 · 7 min read

Fake CAPTCHA Deceiving Thousands of Users: The Truth Behind ClickFix

As the ClickFix DNS scam had barely settled, a new campaign emerged in February 2026. This campaign also relies entirely on human factors for exploitation - a serious security weakness that no antivir

0

MSMedha Singhmedhaa.hashnode.devFeb 23 · 4 min read

What is Cloudflare "verify you're a human" check??

While browsing websites, we often encounter an annoying checkbox: “Verify you are human” — provided by Cloudflare It feels strange. How can a simple click decide whether you’re a human?And why does th

0

LTLưu Tuấn Anhblog.fiscybersec.comFeb 21 · 8 min read

Tưởng Là Sửa Lỗi, Ai Ngờ Tự Tay Cài Mã Độc: ClickFix Trở Lại Với Chiêu Thức Nguy Hiểm

Trong bối cảnh các chiến dịch tấn công mạng ngày càng tinh vi, một biến thể mới của kỹ thuật ClickFix vừa được ghi nhận đã cho thấy sự thay đổi đáng chú ý trong cách thức phát tán mã độc. Thay vì sử d

0

#captcha

Search Hashnode

#captcha

Explore Hashnode

Trending tags this week

Cloudflare cf_clearance: why it expires and how to stop the re-challenge loop

Cloudflare Turnstile in Playwright: Why Your Tests Stall and How to Solve It in 8 Lines

Why Rate Limiting Alone Won't Stop OTP Abuse — A Real Incident Breakdown

Insecure CAPTCHA in DVWA

How to Rotate Proxies and Solve CAPTCHAs at Scale in 2026

Why Your Agent Can't Read Captchas (And Why That's Actually Good Security)

CAPTCHA Giả Đang Đánh Lừa Hàng Nghìn Người Dùng: Sự Thật Đằng Sau ClickFix

Fake CAPTCHA Deceiving Thousands of Users: The Truth Behind ClickFix

What is Cloudflare "verify you're a human" check??

Tưởng Là Sửa Lỗi, Ai Ngờ Tự Tay Cài Mã Độc: ClickFix Trở Lại Với Chiêu Thức Nguy Hiểm