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When AI Remembers Too Much
Unit 42 PoC shows indirect prompt injection can poison Amazon Bedrock Agent long-term memory, enabling silent exfiltration of conversation history across future sessions.
Palo Alto Networks Unit 42 published a proof of concept showing that indirect prompt injection can silently poison the long-term memory of Amazon Bedrock Agents when the memory feature is enabled. Malicious content on a webpage or document manipulates the agent's session summarization process, so injected instructions persist across sessions and are added to later orchestration prompts, silently exfiltrating user conversation history. The issue is not a vulnerability in the Amazon Bedrock platform but an illustration of the broader unsolved LLM prompt-injection challenge. Amazon reviewed the research and stated that Bedrock Guardrails with the prompt-attack policy provides effective mitigation.
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If the Markets Reject OpenAI and Anthropic, the US Should Nationalize Them
Opinion essay argues the US should nationalize OpenAI and Anthropic into public labs if markets reject their trillion-dollar IPO valuations.
Sanders and Schneier argue in The Guardian that OpenAI and Anthropic may never be sustainably profitable, citing commodity models, short depreciation windows, and free open-source competitors only months behind in capability. They propose converting the labs into US national labs or regulated public utilities if markets reject their recently filed IPOs, which buzz valued at trillions of dollars. They cite public backlash to AI datacenters, Nvidia's slumping stock, and public AI labs in Switzerland, Spain, and Singapore as context.
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TruffleHog AWS Analyze reduces remediation time on leaked AWS credentials
Truffle Security launched TruffleHog AWS Analyze, which maps leaked AWS keys' permissions and role assumptions; research found 88% of 64,024 leaked keys still active.
Truffle Security announced TruffleHog AWS Analyze, a TruffleHog Enterprise feature that enriches leaked AWS credentials with identity, effective permissions, and role-assumption context to help teams assess blast radius and prioritize remediation, extending earlier coverage of SaaS and Google Cloud to AWS. Truffle Security research on 64,024 unique leaked AWS keys found 88% still active, a median exposure of five years, only 14% rotated, 84% with full administrator access, and 1 in 6 being root keys, including 929 keys AWS had flagged via its compromised-key quarantine policy that still authenticated. A scan of 7.6 petabytes of public AI training data on Hugging Face found 3,343 live AWS keys, over 900 of which could list S3 buckets holding at least 51.7 TB of private data.
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Context Engineering Inside the Harness: 4 Mechanisms That Beat Context Overflow and Goal Loss on Long-Horizon Tasks
Survey of four harness mechanisms—context budgeting, compaction, todo-state, and memory—that keep long-horizon LLM agents on task across 200+ tool calls.
The article details how agent harnesses, not larger context windows, solve context overflow and goal loss on long-horizon tasks, citing Chroma's Context Rot report showing 18 LLMs (GPT-4.1, Claude 4, Gemini 2.5, Qwen3) degrade on long inputs. Concrete implementations include LangChain Deep Agents offloading tool responses over 20,000 tokens to the filesystem and truncating old tool calls at 85% window usage, and Claude Code capping auto memory at 25KB while re-reading the 5 most recently modified files after compaction. OpenAI's Responses API now offers server-side compaction via context_management with a standalone /responses/compact endpoint, which Codex uses for long-running coding tasks. Manus reports a roughly 100:1 input-to-output token ratio per ~50-tool-call task, motivating todo.md state recitation to prevent goal drift.
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Product showcase: Doppler secures secrets for humans, pipelines, and AI agents
Doppler's secrets management platform centralizes credentials for engineers, CI/CD pipelines, MCP servers, and AI agents with runtime injection and dynamic secrets.
Doppler stores API keys, database URLs, tokens, and certificates in a single control plane and injects them at runtime, replacing .env files for human and machine identities including AI agents. It supports OIDC with short-lived identity tokens for Azure, AWS, and GCP, dynamic secrets scoped and time-boxed to single sessions, SCIM provisioning, 50+ integrations, and an MCP server that lets agents request configurations natively. Permissions are enforced at each layer so raw secrets stay out of logs, prompts, and model context, with versioning, rollback, SIEM log forwarding, and cloud or on-prem deployment.
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The VMs Powering Mobile Agents (Instinct, Claude Code)
A teardown reveals Claude Code runs in Firecracker microVMs with a Rust PID 1 and MITM'd egress, while Instinct rents E2B sandboxes with git-based memory.
The author inspects the virtual machines hosting cloud agents: Claude Code runs in a Firecracker microVM with a custom Rust init (process_api) as PID 1, a 324 MB Bun harness on a read-only disk, and 443-only MITM'd SSE egress to api.anthropic.com with host-rotated OAuth tokens and no inbound access. Instinct rents E2B sandbox-as-a-service Firecracker microVMs (Ubuntu 22.04, 2 vCPU, 1.9 GB RAM) where agent memory is a git repo of Markdown committed by the agent and pushed to S3 as a single bundle, using short-lived STS credentials. Both platforms rely on Firecracker, differing mainly in fleet operator and guest boot configuration.
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Agent Harness vs Agent Framework vs MCP: Which Layer Owns the Loop, State, Tools, Permissions, and Recovery
Architecture explainer separates agent harnesses, frameworks, and MCP by which layer owns the loop, state, permissions, and recovery.
The article distinguishes agent harnesses (OpenAI Codex, Claude Agent SDK), which own the execution loop, sandbox, permission model, and recovery; frameworks (LangGraph, OpenAI Agents SDK, Microsoft Agent Framework), which supply composable primitives; and MCP, a stateless JSON-RPC wire protocol governed by the Linux Foundation's Agentic AI Foundation since December 2025. An ownership matrix maps the execution loop, state, tool transport, permissions, recovery, sandboxing, and multi-agent orchestration to each layer. The 2026-07-28 MCP specification made the protocol fully stateless, retiring the initialize handshake and session headers.
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Cybersecurity jobs available right now: September 1, 2026
Help Net Security's September 1, 2026 roundup lists cybersecurity job openings at Google, Barclays, HUMAN and others across the US, Europe and Asia.
The weekly jobs roundup lists openings including a Google Security Engineer (Professional Services) role in the USA, a Cryptography Operations Engineer at Barclays in the UK, a Backend Engineer at HUMAN in Israel, and an AI Security Engineer at CPX in the UAE. Other listed roles span SOC analysis, SIEM engineering, cloud security, and network security across the USA, Ireland, India, Italy and Australia.
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Cybersecurity jobs available right now: April 14, 2026
Help Net Security lists active cybersecurity job openings at employers including MANTECH, Honeywell, SMBC Group and SBS Transit across multiple countries.
The roundup aggregates cybersecurity vacancies spanning application security, GRC consulting, cyber threat intelligence, digital forensics, SOC analysis and OT security. Openings were posted in India, the United Kingdom, Italy, the USA, Singapore, France, Germany, Ireland and the UAE. Most roles were no longer accepting applications at publication. Named employers include Honeywell, MANTECH, TENEX.AI, Oxford Nanopore Technologies, SMBC Group, SBS Transit and VINCI Energies.
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Cybersecurity jobs available right now: March 10, 2026
Help Net Security's roundup lists open cybersecurity roles at BioNTech, AIG, ServiceNow and others across Europe, the Middle East and Canada.
A job-board roundup of cybersecurity openings including Associate Director Application Security at BioNTech (Germany), CISO at AIG (Israel), Cloud Security Professional at ServiceNow (Italy), and SOC/GRC, analyst, engineer and data governance roles in the UK, UAE, India, Canada and France. Roles span application security, cloud security, SOC operations, compliance and OT environments. Most listings are marked no longer accepting applications.
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