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What are the best practices for securing email communications against advanced persistent threats?

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Email is one of the most widely used and essential communication tools in the digital world, but it also exposes users and organizations to various types of cyberattacks. Advanced persistent threats (APTs) are sophisticated and stealthy attacks that aim to compromise sensitive data, disrupt operations, or sabotage systems over a long period of time. APTs often use email as an entry point to deliver malware, phishing, or spear phishing campaigns. To protect your email communications against APTs, you need to follow some best practices that can enhance your security posture and resilience.

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Adhish Pillai

Sales Manager - Cyber Security | MBA in Sales, Marketing & IT Systems

1 Use encryption

Encryption is the process of transforming data into an unreadable format that can only be decrypted by authorized parties. Encryption can protect your email content, attachments, and metadata from being intercepted, modified, or stolen by malicious actors. You can use encryption at different levels, such as end-to-end encryption, transport layer security (TLS), or secure multipurpose internet mail extensions (S/MIME). End-to-end encryption ensures that only the sender and the recipient can access the email, while TLS and S/MIME encrypt the email while it is in transit or at rest on the servers.

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2 Implement authentication

Authentication is the process of verifying the identity and legitimacy of the sender and the recipient of an email. Authentication can prevent spoofing, impersonation, or domain hijacking attacks that can trick you into opening malicious emails or revealing sensitive information. You can use authentication protocols, such as sender policy framework (SPF), domain keys identified mail (DKIM), or domain-based message authentication, reporting, and conformance (DMARC). SPF checks if the sender's IP address matches the domain's records, DKIM verifies if the email signature matches the domain's public key, and DMARC enforces a policy on how to handle emails that fail SPF or DKIM checks.

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Adhish Pillai

Sales Manager - Cyber Security | MBA in Sales, Marketing & IT Systems
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The core value of email security solutions lies in taking care of your most valuable digital asset: Email. We should strive in our day-to-day practice to increase customer Email Deliverability help customers get the maximum ROI from their mailing campaigns and increase trust amongst customers, partners, and vendors!

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3 Apply filtering

Filtering is the process of screening incoming and outgoing emails for spam, malware, or phishing indicators. Filtering can reduce the volume and impact of malicious emails that can compromise your security or productivity. You can use filtering tools, such as spam filters, antivirus software, or email security gateways. Spam filters analyze the email headers, content, and reputation to block or quarantine unwanted or suspicious emails. Antivirus software scans the email attachments and links for malware or viruses and removes or blocks them. Email security gateways inspect the email traffic and apply various security policies and rules to prevent or detect APTs.

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Adhish Pillai

Sales Manager - Cyber Security | MBA in Sales, Marketing & IT Systems
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The ideal solution should work when it matters the most - during real attacks. With a one-click reporting system, your employees can report potential threats without hassle, and the platform should core value lies in taking care of your most valuable digital asset: Email. We thrive to increase your Email Deliverability and help you get the maximum ROI from your mailing campaigns and increase trust amongst your customers, partners and vendors!handle the rest - automatically.

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4 Educate users

Users are the weakest link in email security, as they can fall victim to social engineering, human error, or negligence. Users can expose themselves or their organizations to APTs by clicking on malicious links, opening infected attachments, or sharing sensitive information. To prevent or mitigate these risks, you need to educate your users on how to recognize and respond to email threats, how to use encryption and authentication tools, and how to follow security policies and best practices. You can provide regular training, awareness campaigns, or simulations to improve your users' security skills and behavior.

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Adhish Pillai

Sales Manager - Cyber Security | MBA in Sales, Marketing & IT Systems
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We need to transform employees from an organization’s weakest link into their strongest line of defense by using a security awareness and training platform that also works when real attacks strike which gamifies the learning experience via phishing simulations, builds individual risk profiles, and rewards real-time reporting. If you don’t invest in the Human Operating System, then the entire investment made in the Software Operating System can be multiplied by ‘ZERO’ due to one human error. We have expertise in this domain and have taken this as a mission to cover humans from the weakest link to the strongest.

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5 Monitor and respond

Monitoring and responding are the processes of detecting and containing email threats and incidents. Monitoring and responding can help you identify and stop APTs before they cause significant damage or loss. You can use monitoring and responding tools, such as security information and event management (SIEM), incident response platforms, or threat intelligence services. SIEM collects and analyzes the email logs and alerts to detect anomalies or indicators of compromise. Incident response platforms automate and orchestrate the actions and workflows to contain and remediate email incidents. Threat intelligence services provide information and insights on the latest email threats and actors and how to defend against them.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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What are the best practices for securing email communications against advanced persistent threats?

1

2

3

4

5

6

1 Use encryption

2 Implement authentication

3 Apply filtering

4 Educate users

5 Monitor and respond

6 Here’s what else to consider

Internet Services

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What are the best practices for securing email communications against advanced persistent threats?

1

2

3

4

5

6

1 Use encryption

2 Implement authentication

3 Apply filtering

4 Educate users

5 Monitor and respond

6 Here’s what else to consider

Internet Services

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感谢您的反馈

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