Sectigo and its ZeroSSL brand combined surged 41.2% in certificate issuance between Q4 2025 and Q1 2026, the largest single-quarter gain of any commercial CA in the Certificate Transparency data. Sectigo now holds 11.7% of new certificate issuance globally. For[…]
Verizon’s 2026 Data Breach Investigations Report (DBIR), based on analysis of more than 31,000 security incidents and over 22,000 confirmed data breaches across 145 countries, found that third-party involvement in breaches jumped to 48% of all incidents in 2025, up[…]
SSL certificate management for a single website is straightforward: buy or provision a certificate, install it, set up renewal. SSL certificate management for a SaaS platform with thousands of customer tenants is an entirely different engineering problem.When a SaaS platform[…]
How this glossary differs from CA-published glossaries: CA glossaries are written to make certificates sound more complex and more necessary than they are. This glossary is written to tell you exactly what each term means in practice, when it matters,[…]
What Happened on May 8, 2026At 18:37 UTC on May 8, 2026, Let’s Encrypt halted all certificate issuance. The root cause: cross-signs of X2/YR by X1 and YE by X2 were issued without the Extended Key Usage (EKU) fields now[…]
There is a widespread belief that has quietly taken root across the internet, one that digital security professionals find genuinely alarming: if a website has a padlock icon in the browser bar, it must be safe to use.That belief is[…]
The little padlock in a browser’s address bar once symbolized the entire idea of web security.When it appeared, users felt safe — data was encrypted, communication was private, and the internet seemed trustworthy.But that lock now represents something more complex[…]
In today’s software ecosystem, trust is everything. Whether you’re an independent developer, a growing software company, or an enterprise publisher, protecting your software and your brand reputation is non-negotiable.One of the easiest and most effective ways to build this trust[…]
In networking, a specific set of rules are present for formatting and processing data which is known as a protocol. The common language for computers is referred to as network protocols. Different software and hardware may use by the computers[…]
What is Phone Hacking?Everyone in today’s world is using a mobile phone and surfing on the internet. Every type of work is done on mobile phones, like transferring money from one account to another or ordering your favourite food from[…]
The FBI’s Internet Crime Complaint Center reported $2.9 billion in Business Email Compromise losses in 2023 alone. These are not sophisticated technical attacks. They are email impersonation: an attacker sends an email that appears to come from a trusted executive,[…]
An email certificate is an X.509 digital certificate used to digitally sign and encrypt email messages. The technical standard that governs how email certificates work is S/MIME, which stands for Secure/Multipurpose Internet Mail Extensions. S/MIME defines how public key cryptography[…]
Last updated: Nov 13, 2025 When Chrome displays the message “ERR_CONNECTION_REFUSED”, it means your browser tried to connect to a website but the request was rejected instead of being completed. This error can be frustrating because it appears suddenly, blocks[…]
Self-signed SSL certificates have real disadvantages. They also have legitimate use cases where those disadvantages either do not apply or are acceptable trade-offs. The problem with most articles on this topic is that they treat all uses of self-signed certificates[…]
