Showing only posts tagged certificates. Show all posts.

Options for AWS customers who use Entrust-issued certificates

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Multiple popular browsers have announced that they will no longer trust public certificates issued by Entrust later this year. Certificates that are issued by Entrust on dates up to and including November 11, 2024 will continue to be trusted until they expire, according to current information from browser makers …

How to issue use-case bound certificates with AWS Private CA

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In this post, we’ll show how you can use AWS Private Certificate Authority (AWS Private CA) to issue a wide range of X.509 certificates that are tailored for specific use cases. These use-case bound certificates have their intended purpose defined within the certificate components, such as the …

2023 ISO and CSA STAR certificates now available with ISO 27001 transition from 2013 to 2022 version

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Amazon Web Services (AWS) successfully completed a surveillance audit for ISO 9001:2015, 27001:2022, 27017:2015, 27018:2019, 27701:2019, 20000-1:2018, and 22301:2019, and Cloud Security Alliance (CSA) STAR Cloud Controls Matrix (CCM) v4.0. Ernst and Young Certify Point auditors conducted the audit and reissued …

Messaging Service Wiretap Discovered through Expired TLS Cert

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Fascinating story of a covert wiretap that was discovered because of an expired TLS certificate: The suspected man-in-the-middle attack was identified when the administrator of jabber.ru, the largest Russian XMPP service, received a notification that one of the servers’ certificates had expired. However, jabber.ru found no expired …

How to enforce DNS name constraints in AWS Private CA

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In March 2022, AWS announced support for custom certificate extensions, including name constraints, using AWS Certificate Manager (ACM) Private Certificate Authority (CA). Defining DNS name constraints with your subordinate CA can help establish guardrails to improve public key infrastructure (PKI) security and mitigate certificate misuse. For example, you can …

Windows feature that resets system clocks based on random data is wreaking havoc

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Enlarge A few months ago, an engineer in a data center in Norway encountered some perplexing errors that caused a Windows server to suddenly reset its system clock to 55 days in the future. The engineer relied on the server to maintain a routing table that tracked cell phone …

Three ways to boost your email security and brand reputation with AWS

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If you own a domain that you use for email, you want to maintain the reputation and goodwill of your domain’s brand. Several industry-standard mechanisms can help prevent your domain from being used as part of a phishing attack. In this post, we’ll show you how to …

How to evaluate and use ECDSA certificates in AWS Certificate Manager

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AWS Certificate Manager (ACM) is a managed service that enables you to provision, manage, and deploy public and private SSL/TLS certificates that you can use to securely encrypt network traffic. You can now use ACM to request Elliptic Curve Digital Signature Algorithm (ECDSA) certificates and associate the certificates …

How to use ACM Private CA for enabling mTLS in AWS App Mesh

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Securing east-west traffic in service meshes, such as AWS App Mesh, by using mutual Transport Layer Security (mTLS) adds an additional layer of defense beyond perimeter control. mTLS adds bidirectional peer-to-peer authentication on top of the one-way authentication in normal TLS. This is done by adding a client-side certificate …

The Misaligned Incentives for Cloud Security

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Russia’s Sunburst cyberespionage campaign, discovered late last year, impacted more than 100 large companies and US federal agencies, including the Treasury, Energy, Justice, and Homeland Security departments. A crucial part of the Russians’ success was their ability to move through these organizations by compromising cloud and local network …