Brain Cipher Ransomware, Infostealer Tracks Users, TeamViewer Russian Hackers – Cybersecurity News [July 01, 2024]

Brain Cipher Ransomware, Infostealer Tracks Users, TeamViewer Russian Hackers – Cybersecurity News [July 01, 2024]

Brain Cipher Ransomware, Infostealer Tracks Users, TeamViewer Russian Hackers – Cybersecurity News [July 01, 2024]

by DuoCircle

 

Welcome back to our weekly bulletin, where we bring you the latest cybersecurity information so you can stay safe against the latest attacks and malicious campaigns. We’ll share details about the new Brain Cipher ransomware, how info stealers could track users linked to child abuse sites, the corporate attack on Team Viewer, the story of a scorned employee stealing patient healthcare data, and the latest crypto drainer phishing attack on Ethereum. Stay tuned!

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A guide to DKIM syntax– create your DKIM record for free

A guide to DKIM syntax– create your DKIM record for free

 

A DKIM record is a DNS record in the TXT format that includes a public key that is used by recipients’ mail servers to verify the legitimacy of emails they receive from your domain. A standard DKIM record has a name, version, key type, and public key. Some domain owners think that creating a DKIM record requires hardcore technical expertise, but that’s not true, especially when it comes to generating a basic DKIM record. You just need to be an average tech user, and you will be able to create a DKIM record on your own.

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The Business Professional’s Guide to Finding Email Addresses

The Business Professional’s Guide to Finding Email Addresses

Have you ever wondered how much more effective your marketing could be if you had the right email addresses? In 2023, email marketing delivered a return on investment (ROI) of $42 for every $1 spent, making it one of the most cost-effective marketing strategies available. Yet, sourcing accurate email addresses can feel like finding a needle in a haystack. Fear not! This guide will help you discover practical methods to build your email list with precision and efficiency.

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Know these Gmail SMTP error codes to fix email delivery issues for your company’s domain

Know these Gmail SMTP error codes to fix email delivery issues for your company’s domain

Know these Gmail SMTP error codes to fix email delivery issues for your company’s domain

by DuoCircle

 

Not all your emails pass authentication checks and other filters, thus returning with error codes. These codes help diagnose and understand issues that occurred during email transmission, letting you fix them and resend the message. For instance, it could indicate if the problem is due to incorrect credentials, a blocked email, or a temporary server issue. Some error codes indicate security-related issues, such as failed authentication attempts or detection of spam or phishing attempts.

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The Business Professional’s Guide to Finding Email Addresses

US bans the Kaspersky antivirus: Here’s what you need to know

US bans the Kaspersky antivirus: Here’s what you need to know

by DuoCircle

 

You probably know by now that cybersecurity isn’t just about protecting your computers and data from threat actors, but it has broader implications that go as far as national security. Yes, it’s true! Case in point: the recent ban on Kaspersky antivirus software by the US government.

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LockBit Bank Data Deception, Snowblind Evades Detection, FBI Warns Crypto Scams – Cybersecurity News [June 24, 2024]

LockBit Bank Data Deception, Snowblind Evades Detection, FBI Warns Crypto Scams – Cybersecurity News [June 24, 2024]

LockBit Bank Data Deception, Snowblind Evades Detection, FBI Warns Crypto Scams – Cybersecurity News [June 24, 2024]

by DuoCircle

 

This week’s cybersecurity bulletin is packed with news that’s making headlines around the world! We’ve got reports on a failed scare tactic by the LockBit ransomware gang, a new and sneaky Android malware called Snowblind, the FBI warning about fake law firms targeting crypto scam victims, a supply chain attack that backdoored WordPress plugins, and Chinese cyberspies using ransomware as a diversion. Read more below!

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How to fix “Your DKIM signature is not valid” error

How to fix “Your DKIM signature is not valid” error

How to fix “Your DKIM signature is not valid” error

by DuoCircle

 

Email authentication protocols are the foundation of your email security strategy, and even the most seemingly insignificant error can mess up your deliverability and security. One such issue is an invalid DKIM signature, which means there are inaccuracies in your domain’s DomainKeys Identified Mail (DKIM) configuration.

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Configuring DKIM to sign mail from your Microsoft 365 domain

Configuring DKIM to sign mail from your Microsoft 365 domain

 

The main purpose of DKIM is to verify whether a malicious entity tampered with email content in transit. To ensure this, a pair of public and private keys are produced for your domain and used by the source email systems to digitally sign the headers of outgoing messages. This digital signature remains valid until intermediate email systems modify the signed part. The d= value represents the signing domain in the header field.

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How to fix the 550 5.7.26 unauthenticated sender error in Gmail?

How to fix the 550 5.7.26 unauthenticated sender error in Gmail?

How to fix the 550 5.7.26 unauthenticated sender error in Gmail?

by DuoCircle

 

Back in October 2023, Google released its revamped version of email-sending policies, which mandated bulk email senders to comply with the new authentication standards by February 2024. Cut to today: Google has now officially started rolling out these updated policies, and some organizations are receiving the following error message while sending emails:

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A Guide to Checking DMARC Compliance

A Guide to Checking DMARC Compliance

 

DMARC, or Domain-based Message Authentication, Reporting, and Conformance is one of the most important email authentication protocols that helps protect your email domains from phishing, spoofing, and other email-based cyber threats. Perhaps this is why it has now become a norm for organizations that send bulk emails to comply with.

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