https://kesslerautomation.net/blog Security insights, case studies, and technical writeups from real engagements. en-us Sat, 23 May 2026 02:36:50 GMT https://kesslerautomation.net/blog/signs-microsoft-365-compromised https://kesslerautomation.net/blog/signs-microsoft-365-compromised Sun, 17 May 2026 00:00:00 GMT M365 is the most attacked productivity platform on the internet. Here are the early warning signs of a compromise, and the first hour of response that decides how bad it gets. Security https://kesslerautomation.net/blog/what-is-in-a-free-security-assessment https://kesslerautomation.net/blog/what-is-in-a-free-security-assessment Sun, 17 May 2026 00:00:00 GMT Every consultant offers one. Most are sales calls dressed up as audits. Here is what a real free assessment should cover, what to expect, and how to tell which kind you are getting. Security https://kesslerautomation.net/blog/small-business-network-segmentation https://kesslerautomation.net/blog/small-business-network-segmentation Sun, 17 May 2026 00:00:00 GMT Flat networks are the most common finding I make on small business assessments. Here is what segmentation actually looks like, what gear you need, and why it usually costs less than people think. Infrastructure https://kesslerautomation.net/blog/cloud-bill-cut-without-touching-production https://kesslerautomation.net/blog/cloud-bill-cut-without-touching-production Sun, 17 May 2026 00:00:00 GMT A small business was paying $1,800 a month for AWS. The bill kept creeping up and nobody could explain why. Here is what the audit found and how the fixes shipped over two evenings. Case Study https://kesslerautomation.net/blog/why-i-do-not-build-on-wordpress https://kesslerautomation.net/blog/why-i-do-not-build-on-wordpress Sun, 17 May 2026 00:00:00 GMT WordPress is fine when it gets maintained. Most of the WordPress sites I see in the wild are not. Here is the trade-off I weigh when scoping a new build, and why I usually land on a different stack. Development https://kesslerautomation.net/blog/dmarc-spf-dkim-plain-english https://kesslerautomation.net/blog/dmarc-spf-dkim-plain-english Sun, 17 May 2026 00:00:00 GMT Three DNS records control whether other servers trust email from your domain. Most small businesses have them set up wrong or not at all. Here is what each one does and how to fix yours. Infrastructure https://kesslerautomation.net/blog/reading-your-aws-bill https://kesslerautomation.net/blog/reading-your-aws-bill Sun, 17 May 2026 00:00:00 GMT AWS bills are not built to be read by humans. Here is what each section means, which services tend to surprise people, and how to spot waste yourself before you call a consultant. Infrastructure https://kesslerautomation.net/blog/security-oversights-businesses-miss https://kesslerautomation.net/blog/security-oversights-businesses-miss Sat, 09 May 2026 00:00:00 GMT After years of assessments across manufacturing, retail, and professional services, the same gaps keep appearing. Most of them are free to fix. Security