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Cyber Security Newsletter | June 2019


Check Your Email Server! Exim Attack Hits Half of MTAs Globally

Last week there was a freshly reported email server vulnerability in the Exim MTA server code (versions 4.87 to 4.91), which is used by over half of the MTAs connected to the Internet. Just a few days later Cyren already found someone trying to exploit it. If you’re an email administrator, you should be aware of this new attack, the objective of which is to create a backdoor that could then be exploited for almost anything, since the attackers would then have full root access to the server. 

Read All About It!


Live Webinar: What Are You Doing About Office 365 Phishing Security?

June 27, 2019

This webinar will present insights from a new survey of IT and security professionals using Office 365 for their corporate email. Benchmark your security posture and planning with answers from your peers, including around phishing targeting Office 365. A complimentary copy of the survey will be provided to all webinar registrants.

German-Language Webinar: Käuferleitfaden E-Mail-Sicherheit für Office 365 Kunden

July 4, 2019

Wie Office 365-Kunden ihre kritischen Unternehmensbereiche vor Bedrohungen durch den meistgenutzen Angriffsweg E-Mail schützen.

Recurring Webinars: Interactive Technical Product Tours - Cyren Email Security, DNS Security & Cloud Sandboxing

Multiple Date & Time Options Available

During this session, Cyren will discuss all possible threats that potentially can harm your business, and which solutions will protect you from these cyber attacks. You will also have the opportunity to talk to one of our Senior Solutions Engineers and ask questions specific to your business needs.


Cyren Blog Posts You Might Have Missed

This year’s Infosecurity Europe again made me realise that I am privileged to work in such an exciting industry. As always, there was a lot of hype to cut through, but once you did, there were great insights to be found. Here are my top three takeaways from walking the floor.

More Live And Virtual Events Hosted By Cyren


Post Event: Infosecurity 2019

Olympia, London, UK

If you missed Cyren at Infosecurity 2019, here are recordings of the presentation series we ran at the booth. Each is about 5 minutes:

Evasive malware: insight into tactics & defences

Evasive phishing: insight into tactics

Phishing kits: democratizing evasive phishing

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Upcoming Event: European Legal Security Forum 

2 July 2019 | ETC.VENUES 155 Bishopsgate | London

Register Today

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Upcoming Event:  Black Hat USA

Booth 1618

August 3-8, 2019 | Mandalay Bay, Las Vegas, USA

Black Hat USA 2019 is THE place to be this August to network with security experts, researchers, and solution providers. This year, Cyren is hyper-focused on addressing the rise of evasive phishing with our 100% cloud solutions for businesses, security integrators, and service providers.

Request a Meeting or Demo with Cyren

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Cyren in the News

Hacker News: Exim email servers are now under attack

"During the attacks, attackers create a backdoor on mail servers by loading a shell script that adds the SSH key to the superuser account. The script itself is located on a server on the Tor network, making it almost impossible to find out its origin. Most hackers attack systems based on Red Hat Enterprise Linux (RHEL), Debian, openSUSE and Alpine Linux OSs, said Magni R. Sigurdsson, an expert from Cyren, told ZDNet."

IT Home (Chinese)

ZDNet (German)

ZDNet (French)