Zero-day exploits are among the most dangerous threats in IT security. They exploit previously unknown vulnerabilities in software for which no protective measures yet exist, which makes them particularly insidious. This type of attack is often used by hackers, but also by secret services, to compromise systems undetected. In this article, you will learn how zero-day exploits work, what forms they can take and how you can best protect yourself against them.
Email spoofing is a particularly insidious form of cyberattack: the sender of an email is falsified in order to gain trust and deceive recipients. The consequences range from data theft and malware to financial damage. In this article, you will learn how spoofing works, why it is so dangerous – and how you can effectively protect yourself against it.
The mandatory introduction of the AES-128 GCM encryption standard in EDI@Energy will take effect on October 1, 2025. The transition was originally planned for April 1, 2025. We explain what you need to do now.
Scamming is no longer a fringe phenomenon. Behind the innocent-sounding term lies a multitude of sophisticated scams that are used on a massive scale, particularly via email. Whether phishing, CxO fraud or romance scams, in this article you will learn how modern scams work, how to recognise them and what measures you can take to effectively protect yourself and your company.
On March 15, 2025, the licence for the Core Antispam Engine expired for some customers. In some cases, this resulted in temporary rejections of emails.
E-invoicing will be mandatory from January 1, 2025 and many companies already use a dedicated email address to receive e-invoices. Find out why this makes sense and how NoSpamProxy optimally protects your mailbox in this blog article.
The protection of personal and business data is becoming increasingly important. Whether private chats or the exchange of sensitive documents, ensuring the confidentiality and integrity of transmitted information is crucial. End-to-end encryption (E2EE) ensures that data is only accessible to the intended recipients and is protected against attacks and manipulation. However, gateway-to-gateway encryption (G2GE) also offers secure protection. Find out exactly what the differences are and which approach makes sense for you in our blog post.
Cyber criminals are currently using phishing to spread a malware called Strela Stealer via German-language emails. Strela Stealer harvests login data from Outlook and Thunderbird accounts. The criminals then use originally legitimate emails containing invoices, which they forward and send to their victims. These victims then receive what appear at first glance to be identical emails, with only the recipient address and the attachment having been changed. Instead of the invoice, the criminals send .zip files with the same name that contain malware. Our data based on the meta information collected in 32Guards shows the approach of the spammers as well as the distinctive features of phishing emails – and how you can protect your email address from misuse.
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- Limited support hours on Friday, May 16, 202513.05.2025 - 11:35
- What is a Zero-Day Exploit?23.04.2025 - 14:00
- UPDATE: New Google email sender guidelines: What you need to do17.04.2025 - 12:00