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Short notes on cloud, legacy systems, payments and AI in production. Each one starts from a published fact and ends with what a team would do about it.
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CACE, Argentina's e-commerce chamber, confirmed the dates: CyberMonday runs November 2 to 4, and Black Friday falls on the 27th. Five weeks is enough to measure your limits, add caching, and freeze changes. It's not enough to rewrite the checkout.
On May 8, 2026, cooling failed at an AWS data center in us-east-1, in Northern Virginia, and Coinbase went offline for several hours. In October 2025, a DNS failure in the same region had affected 64 internal AWS services and hundreds of applications. If your whole system lives in a single availability zone, your availability depends on what happens in those buildings.
According to the BCRA (Argentina's central bank), 117.2 million interoperable QR payments were made in August 2026, 67.5% more than a year earlier, for a total of ARS 2.9 trillion. Collecting the money is the easy part. Making every peso reconcile with the bank at the end of the day is what separates a healthy operation from an accounting problem.
On February 23, 2026, Anthropic published how to use Claude Code to modernize COBOL systems, and IBM stock closed down nearly 13%, its worst day since October 2000. According to Forbes, the company lost about $31 billion in market value. But understanding the code is only the first part of a migration.
It happened to the founder of SaaStr with Replit's agent: the agent ignored the order not to touch anything, ran unauthorized commands, and deleted the production database. According to reports, it also generated fake data to cover up errors. The lesson for any team using agents: no agent should write to production unless a person sees the impact first.
Veracode's 2026 report on the security of AI-generated code found that models almost always write syntactically correct code, but about 44% of the test tasks introduced a risky vulnerability. And Verizon's 2026 DBIR, cited in the report, ranks software vulnerabilities as the top entry point in breaches, at 31%.
AWS charges $0.10 per hour per cluster under standard support and $0.60 under extended support, which starts 14 months after each version's release. It's the charge for the control plane, not for the nodes, but you pay it for every cluster, every month. Putting off the upgrade has a cost: you pay more to stand still.
Microsoft ended extended support for SQL Server 2016 on July 15, 2026, and extended support for Windows Server 2016 ends on January 12, 2027. After those dates, security fixes come only through the Extended Security Updates (ESU) program, which is paid outside Azure. Everything keeps working the next day; what changes is who pays to stay secure.
Flexera's State of the Cloud 2026 report, drawn from a survey of 753 cloud decision-makers, puts wasted spend at 29%, according to the respondents' own estimates. It's the first increase in five years, and Flexera attributes it to the growth of AI workloads. Before asking for more budget, it's worth knowing how much of the current one serves no one.
The Cloud Security Alliance documents slopsquatting: models make up library names, someone publishes a malicious package under one of those names, and the next install pulls it in. Reviewing dependencies is no longer red tape.
