What is “Header From” spoofing?
"Header From" spoofing is a common email impersonation tactic where a malicious actor forges the visible "From" address of an email to appear as a legitimate sender.
Security
Internet security is essential in protecting sensitive data, maintaining privacy, and ensuring safe online interactions. As cyber threats grow more sophisticated, businesses and individuals risk data breaches, financial losses, and identity theft without strong security measures.
Internet security tools like Attack Surface Monitoring, Certificate Monitoring, OnDMARC, and Cloudflare create barriers against unauthorized access, helping to safeguard personal and business information. By prioritizing internet security, we build trust in online systems, protect digital identities, and foster a safer digital environment for everyone.
Understanding SPF Lookup Count Limitations and Their Impact on Your Business
The Sender Policy Framework (SPF) is a crucial email authentication protocol that helps protect your domain from spoofing and phishing attacks. However, SPF has a significant limitation known as the "lookup limit," which can impact your email deliverability and business operations if not managed properly.
Choosing a DMARC service: managed or unmanaged?
At 101domain, we offer both managed and unmanaged DMARC solutions to cater to varied needs. But how do you decide which option is right for your business? Let's explore the differences between managed and unmanaged DMARC services to help you make an informed decision.
Real world cases of Business Email Compromise (BEC)
In the email-driven business world of today, Business Email Compromise (BEC) attacks are a formidable threat to enterprises worldwide. Let's take a look into three notable cases of BEC attacks and how you might learn from them.
How to stay out of spam in 2025: A friendly guide for your emails
In this short guide, we’ll touch on a few actionable ways to stay out of spam: quality email lists, SPF, and more.
SSL/TLS Certificates – What are they?
SSL/TLS certificates are critical for safeguarding sensitive information transmitted over the internet. But what exactly are these certificates, and why should businesses care?
Understanding DDoS attacks and how to mitigate them
Among the many cybersecurity threats businesses face, Distributed Denial of Service (DDoS) attacks stand out as particularly disruptive. This introductory guide aims to help you understand what is a DDoS attack, how they operate, and the steps you can take to assess your vulnerability in order to mitigate potential threats.
OnDMARC vs. DMARCIAN: What’s the difference?
Implementing DMARC is essential for protecting your brand and enhancing email deliverability. But which service should you choose?
5 key features of a reliable certificate monitoring service
SSL/TLS certificate monitoring has become more important than ever. Here's what to look out for when choosing a CM service.
Is Attack Surface Monitoring only for large enterprises?
While it might seem that only large enterprises would require such technology, Attack Surface Monitoring is, in fact, vital for businesses of every size.