Category: Security
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Anyone can send an email that claims to be from your domain. SPF, DKIM, and DMARC help receiving servers decide whether to trust it. SPF (Sender Policy Framework) A DNS record listing which servers are allowed to send email for your domain. If a message comes from a server not on the list, it fails…
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Email remains the main route for phishing, malware, and fraud. No single tool stops everything, so use layers. Layer 1: Filtering A secure email gateway or built-in protection (such as Microsoft Defender for Office 365) scans incoming mail for: – Spam and bulk mail – Malicious attachments (using sandboxing) – Dangerous links (checked when clicked,…
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Remote support tools let a technician see or control a user’s computer without being on site. They cut resolution times and travel costs, but they’re also attractive to attackers. Types of tools – Attended support: the user starts a session and shares a code, so it’s ideal for ad-hoc help – Unattended access: technicians connect…
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Many successful cyberattacks don’t use clever new techniques. They exploit known vulnerabilities for which a patch already exists. Why patching matters Software vendors release fixes regularly. Once a flaw is public, attackers race to exploit it, and automated tools scan the internet looking for unpatched systems. What to patch – Operating systems: Windows, macOS, Linux…
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The term “antivirus” covers a lot of ground today. Here’s how the main categories compare. Traditional antivirus (AV) Detects known malware using signatures and some behavior checks. It’s a baseline but struggles against new or fileless attacks. Next-generation antivirus (NGAV) Adds behavioral analysis and machine learning to catch threats that don’t match known signatures. Endpoint…
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Single sign-on lets users authenticate once and access many applications without entering credentials again. How it works Applications trust a central identity provider, such as Microsoft Entra ID, Google, or Okta. When a user signs in there, they receive access to connected apps through standard protocols like SAML and OpenID Connect. Benefits – Fewer passwords,…
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Employees juggle dozens of accounts. Without a password manager, they reuse passwords, write them down, or store them in spreadsheets. All of these are risky. What a business password manager does – Generates strong, unique passwords for every account – Stores them in an encrypted vault – Fills them in automatically on websites and apps…
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A password and MFA are good, but they’re the same for every sign-in. Conditional Access adds context. The idea Conditional Access evaluates each sign-in using signals such as: – Who the user is and which group they’re in – Which device they’re using, and whether it’s managed and compliant – Where they’re signing in from…
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Whenever someone signs in to Microsoft 365, they’re using Microsoft Entra ID, formerly called Azure Active Directory (Azure AD). It’s the identity foundation of your cloud environment. What it does – Stores user accounts and groups – Authenticates users when they sign in – Controls access to applications (Microsoft and thousands of third-party apps) –…
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When a drive reaches the end of its life, you have two main options for protecting the data on it. Software wiping (data erasure) Overwrites data so it can’t be recovered, using recognized standards. Many tools also generate a verification report. – Pros: the drive can be reused or resold; produces an audit record –…