Blog

Articles, tutorials, and practical guidance on cybersecurity for startups, SMBs, and growing teams.

The Xpernix blog is where we publish practical security content for founders, IT teams, and security leaders.

Expect short, useful articles on cloud security, detection engineering, security operations, compliance basics, and why security matters as your company grows.

Detection Engineering

Prompt Injection in the SOC: Defending AI Agents That Read Untrusted Logs

Log fields are attacker-controlled input. Here's how to design AI triage and investigation agents so a malicious log line can't hijack the model reading it.

8 min read Read article → Detection Engineering

How to Build an MCP Server for Your SIEM: Safe Log Access for AI Agents

How to expose SIEM data to LLM agents through MCP with scoped tools, tenant isolation, and query guardrails instead of raw database access.

7 min read Read article → Detection Engineering

How to Build an LLM-Powered SOC Alert Triage Pipeline

A practical architecture for using LLMs to triage SIEM alerts: what to automate, how to ground verdicts in real data, and where humans stay in the loop.

6 min read Read article → Detection Engineering

Detecting Defense Evasion: When Attackers Go After Your Logs First

How to build detections for T1562.008 — attackers disabling CloudTrail and GuardDuty before the rest of an attack — with ready-to-use Sigma rules.

6 min read Read article → Detection Engineering

Sigma Rules: Write Detection Logic Once, Run It on Any SIEM

How the open-source Sigma format lets you write a detection rule once and compile it to Splunk, Elastic, or ClickHouse — and where it falls short.

6 min read Read article → Security Basics

Zero Trust Architecture: A Practical Implementation Guide for Israeli SMBs

Zero Trust is a principle, not a product. Here's how Israeli SMBs can implement it practically without a dedicated security team or enterprise budget.

5 min read Read article → Compliance

Understanding the INCD Guidelines: Cybersecurity for Critical Infrastructure in Israel

The Israel National Cyber Directorate publishes detailed security guidance for regulated sectors. Here's what it means for your organization in practice.

5 min read Read article → Operations

Top 5 Hidden Costs in Managed SOC Services (And How to Avoid Them)

The headline price of a managed SOC is rarely what you end up paying. Here's where the hidden costs are and how to negotiate them out before you sign.

5 min read Read article → Security Basics

The Rise of AI in Cyberattacks: How Israeli Businesses Can Defend Themselves in 2026

AI-powered attacks are faster, more convincing, and harder to detect. Here's what Israeli startups and SMBs need to know to stay ahead in 2026.

5 min read Read article → Operations

SOC-as-a-Service ROI: Is Outsourcing Your Security Operations Worth the Price?

Building an in-house SOC is expensive and takes years. But is a managed SOC actually cheaper? Here's how to do the math for your Israeli startup.

5 min read Read article → Security Basics

Protecting Against Supply Chain Attacks: Lessons for Israeli Software Companies

Supply chain attacks target the tools and dependencies your team trusts. Here's what Israeli software companies need to do to reduce their exposure.

5 min read Read article → SIEM

MDR vs. SIEM: Which Is Right for Your Israeli Business?

Managed Detection and Response and SIEM both promise better threat detection, but they solve different problems. Here's how to choose between them.

5 min read Read article → Compliance

How to Establish FIPS 140-3 Compliant Cryptography for Israeli Startups on AWS

FIPS 140-3 is mandatory for U.S. federal data and increasingly expected by enterprise buyers. Here's what Israeli startups on AWS actually need to do to comply.

5 min read Read article → Operations

How to Choose the Right Managed SOC Service for Your Startup's Budget

There are dozens of managed SOC providers targeting startups. Here's a practical buyer's guide focused on what actually matters for Israeli SMBs.

6 min read Read article → Operations

Cyber Insurance in Israel: What Your Startup Needs to Know in 2026

Cyber insurance premiums are climbing and coverage terms are tightening. Here's what Israeli startups need to know before buying a policy in 2026.

5 min read Read article → Security Basics

Building a Security-First Culture: Tips for Israeli Tech Founders

Security culture isn't a training program. It's a set of habits that either get built early or have to be retrofitted at significant cost. Here's how to get it right from the start.

5 min read Read article → Incident Response

Incident Response Planning: A Must-Have for Every Israeli Startup

Most startups treat incident response as something to figure out during the incident. Here's how to build a real IR plan before you need it — with playbooks, detection queries, and legal obligations.

10 min read Read article → Compliance

Amendment 13 to Israel's Privacy Protection Law: What it Means for Your Logs

Amendment 13 rewrites Israel's data security obligations with hard enforcement teeth. Here's exactly what it requires from your logging infrastructure, retention policies, and breach detection capability.

8 min read Read article → Operations

The True Cost of a Managed SOC in 2026: A Complete Pricing Guide

A transparent breakdown of managed SOC pricing models, average market rates, and how Israeli startups can budget for 24/7 security without hidden fees.

5 min read Read article → Operations

SOC-as-a-Service vs. In-House SOC: The Cost-Benefit for Israeli SMBs

A detailed comparison of managed SOC services versus building an in-house Security Operations Center, tailored for the budget and resource constraints of Israeli SMBs.

2 min read Read article → Cloud Security

Securing AWS CloudTrail: Best Practices for Israeli Tech Companies

Practical AWS CloudTrail security controls for Israeli tech companies: organization trails, log protection, alerting, and compliance.

11 min read Read article → Compliance

Navigating Israel's National Cybersecurity Law (2026): A Startup's Guide

What Israeli startups need to know about the National Cybersecurity Law 5786-2026 — who it covers, the core obligations, incident reporting timelines, and what to actually do about it.

11 min read Read article → Operations

SOC-as-a-Service Pricing Explained (Without the Sales Fluff)

How managed SOC contracts are usually priced, which line items hide the real cost, and what to ask so you compare vendors on coverage—not slide decks.

2 min read Read article → SIEM

Managed SIEM for Startups: When Build vs. Buy Stops Making Sense

Why most startups should not run their own SIEM, what managed SIEM actually covers, and how to evaluate vendors without drowning in RFP theater.

3 min read Read article → Compliance

Israeli Startup Compliance Checklist: SOC 2 Meets Local Privacy Reality

A practical checklist for Israeli startups balancing export sales (SOC 2) with Privacy Protection Authority expectations around logs and subprocessors.

2 min read Read article → Cloud Security

AWS CloudTrail Monitoring: A Practical Guide for Teams Who Already Enabled It

What CloudTrail actually records, which events matter for detection, and how to query and alert without turning every API call into pager noise.

2 min read Read article → Cloud Security

Why Israeli Startups Are Getting Breached Through AWS

Israeli startups move fast on AWS, but IAM drift, exposed data, and weak monitoring create breach paths attackers know how to use.

12 min read Read article → Compliance

What the Israeli Privacy Protection Law Means for Your Logs

The Privacy Protection Law updates change how you store, retain, and encrypt logs. Here's what Israeli companies need to know—and why most don't yet.

7 min read Read article → Operations

SOC-as-a-Service vs. Hiring: A Cost Comparison for Israeli Companies

Can your startup afford to hire a security team? We break down the real costs of in-house SOC vs. managed SIEM in the Israeli market.

5 min read Read article → Detection Engineering

GuardDuty Is Not a SOC

GuardDuty detects threats, but it doesn't correlate events, hunt anomalies, or investigate incidents. Here's what it actually does—and what you're missing.

6 min read Read article → SIEM

The Case for System Wide Events: How One Idea Lets Your Log Pipeline Scale

Why defining events at the system level — instead of the source level — removes friction for developers and gives security teams consistent data without constant schema negotiation.

7 min read Read article → Compliance

Setting Up an AWS HIPAA-Compliant Infrastructure

A practitioner's guide to architecting AWS environments for HIPAA compliance, covering everything from BAA agreements to robust log retention.

10 min read Read article → SIEM

The Log Retention Trap: Why Your Security Data is Costing Too Much

Long-term log storage is critical for incident response and compliance, but traditional indexing tools like Elasticsearch make it cost-prohibitive at scale.

3 min read Read article → Cloud Security

Why 'We Have Logs' Is Not the Same as Insight

CloudTrail records AWS API activity. Fast, queryable access beats archive-only storage when you need detection, triage, and proof under time pressure.

4 min read Read article → SIEM

The Cost Crisis of Security Event Storage

Why storing CloudTrail, Okta, and EDR logs breaks the bank, and how data transformation can cut your SIEM bill in half.

4 min read Read article → Compliance

Israeli Cloud Regulations: Why a SOC and CSPM Are No Longer Optional

A practical look at Israeli data security and cloud regulations — the Privacy Protection Law, INCD guidelines, and sector rules — and why CSPM and SOC coverage are required to actually meet them.

8 min read Read article → Security Basics

Why Security Matters for Startups

A practical overview of why early-stage companies should take cybersecurity seriously before the first incident forces the issue.

4 min read Read article → Compliance

SOC 2 and HIPAA Security Requirements: Why CloudTrail Alerts Matter

A practical guide to the security requirements behind SOC 2 and HIPAA, and why CloudTrail monitoring and alerting should be part of your compliance baseline.

8 min read Read article → Cloud Security

CSPM for Startups: Why Audit Trail Alerts Matter More Than Another Dashboard

A technical guide to why CSPM matters, which audit trail events are most important to monitor, and how startups and mid-sized companies can get meaningful cloud security coverage without paying for an enterprise CNAPP.

10 min read Read article →