# Daily Intelligence Briefing — Friday, August 7, 2026

> On 2026-08-07, Threadlinqs published 15 new threat reports and updated 3, 7 rated critical and 10 high, spanning 164 MITRE ATT&CK techniques and 4 named threat actors. Coverage that day added 162 new detection rules and 436 extracted indicators.

- **Edition:** 2026-08-07 (Friday)
- **Canonical:** https://intel.threadlinqs.com/debrief/2026-08-07
- **Last updated:** 2026-08-13
- **New threats:** 15 (3 updated)
- **Critical / high:** 7 critical, 10 high, 0 medium, 0 low
- **ATT&CK techniques:** 164
- **Threat actors:** 4
- **Indicators (count only):** 436
- **New detection rules (count only):** 162

## Summary & highlights

CI Fortify: CISA/ASD/NCSC-UK/CCCS Joint OT Isolation Guidance Exposes Communications-Continuity Gap for Critical Infrastructure Operators. Claude in Chrome "PleaseFix" Prompt-Injection Flaw Enables Gmail/Slack/X/Claude.ai Account Takeover. UNC6671 Automates Microsoft 365 Data Theft via Vishing-Driven AiTM Phishing and Session Hijacking.

- [TL-2026-1923](https://intel.threadlinqs.com/threat/TL-2026-1923) — Claude in Chrome "PleaseFix" Prompt-Injection Flaw Enables Gmail/Slack/X/Claude.ai Account Takeover
- [TL-2026-1926](https://intel.threadlinqs.com/threat/TL-2026-1926) — UNC6671 Automates Microsoft 365 Data Theft via Vishing-Driven AiTM Phishing and Session Hijacking
- [TL-2026-1927](https://intel.threadlinqs.com/threat/TL-2026-1927) — NatJack: NAT Connection-Tracking Manipulation Attacks Hijack TCP Sessions Across Windows, Linux, and macOS (CVE-2026-56181, CVE-2026-63913)
- [TL-2026-1928](https://intel.threadlinqs.com/threat/TL-2026-1928) — Bendix EC80 Truck Brake Controller: 2024 Safety Recall Covertly Patched RCE and DoS Vulnerabilities
- [TL-2026-1929](https://intel.threadlinqs.com/threat/TL-2026-1929) — Claude Code RCE via Malicious .mcp.json in Pull Request Branches

## Theme of the day

Exploitation of critical pre-auth

adversary-in-the-middle, credential-theft, session-hijacking, macos, remote-code-execution

## Threats published

- [TL-2026-1925](https://intel.threadlinqs.com/threat/TL-2026-1925) — CRITICAL — CVE-2026-65400: macOS Screen Sharing Authentication Bypass Grants Unauthenticated Root Access
- [TL-2026-1931](https://intel.threadlinqs.com/threat/TL-2026-1931) — CRITICAL — Google Chrome 151 Update Fixes 41 Security Vulnerabilities, Including 6 Critical Flaws
- [TL-2026-1937](https://intel.threadlinqs.com/threat/TL-2026-1937) — CRITICAL — Unauthenticated Metabase SQL Injection Zero-Day (GHSA-vwf4-m7j8-wcjf) Exploited to Steal Framework and Tally Customer Data
- [TL-2026-1947](https://intel.threadlinqs.com/threat/TL-2026-1947) — CRITICAL — FirewallFalcon Manager: Supply-Chain Backdoor in Underground VPN Server Infrastructure
- [TL-2026-0304](https://intel.threadlinqs.com/threat/TL-2026-0304) — CRITICAL — TeamPCP LiteLLM Supply Chain Attack — Trojaned PyPI Packages (v1.82.7/1.82.8) with Multi-Stage C2 Payload (update)
- [TL-2026-1875](https://intel.threadlinqs.com/threat/TL-2026-1875) — CRITICAL — ChainDrop npm Supply-Chain Compromise: Self-Propagating Mini Shai-Hulud Credential-Stealing Worm Affecting 444+ Packages (update)
- [TL-2026-1924](https://intel.threadlinqs.com/threat/TL-2026-1924) — CRITICAL — "When Agentic Glue Melts": Five workerd Memory-Corruption Flaws Enable Cross-Tenant Secret Theft and Code Mode Sandbox Escape on Cloudflare Workers (update)
- [TL-2026-1923](https://intel.threadlinqs.com/threat/TL-2026-1923) — HIGH — Claude in Chrome "PleaseFix" Prompt-Injection Flaw Enables Gmail/Slack/X/Claude.ai Account Takeover
- [TL-2026-1926](https://intel.threadlinqs.com/threat/TL-2026-1926) — HIGH — UNC6671 Automates Microsoft 365 Data Theft via Vishing-Driven AiTM Phishing and Session Hijacking
- [TL-2026-1927](https://intel.threadlinqs.com/threat/TL-2026-1927) — HIGH — NatJack: NAT Connection-Tracking Manipulation Attacks Hijack TCP Sessions Across Windows, Linux, and macOS (CVE-2026-56181, CVE-2026-63913)
- [TL-2026-1928](https://intel.threadlinqs.com/threat/TL-2026-1928) — HIGH — Bendix EC80 Truck Brake Controller: 2024 Safety Recall Covertly Patched RCE and DoS Vulnerabilities
- [TL-2026-1929](https://intel.threadlinqs.com/threat/TL-2026-1929) — HIGH — Claude Code RCE via Malicious .mcp.json in Pull Request Branches
- [TL-2026-1930](https://intel.threadlinqs.com/threat/TL-2026-1930) — HIGH — Microsoft 365 AitM Phishing Campaign Hijacks Sessions via Residential Proxies to Harvest Payroll and Finance Emails
- [TL-2026-1933](https://intel.threadlinqs.com/threat/TL-2026-1933) — HIGH — WordPress Core XSS2Shell Vulnerability Chains Pre-Auth XSS to RCE (CVE-2026-64638)
- [TL-2026-1934](https://intel.threadlinqs.com/threat/TL-2026-1934) — HIGH — GepyS Banking Malware and Rust Clipboard Hijacker: Two H1 2026 Attack Chains (Gen Digital)
- [TL-2026-1935](https://intel.threadlinqs.com/threat/TL-2026-1935) — HIGH — Nearly 800 Malicious npm Packages Deliver Cross-Platform WEL1DROPPER RAT and Infostealer ('Flooding Dropper' Campaign)
- [TL-2026-1936](https://intel.threadlinqs.com/threat/TL-2026-1936) — HIGH — ClickFix Attacks Deliver Go-Based macOS Infostealer Targeting Crypto Wallets and Keychain Data
- [TL-2026-1932](https://intel.threadlinqs.com/threat/TL-2026-1932) — INFO — CI Fortify: CISA/ASD/NCSC-UK/CCCS Joint OT Isolation Guidance Exposes Communications-Continuity Gap for Critical Infrastructure Operators

## Techniques observed

[T1001](https://intel.threadlinqs.com/technique/T1001), [T1003](https://intel.threadlinqs.com/technique/T1003), [T1005](https://intel.threadlinqs.com/technique/T1005), [T1008](https://intel.threadlinqs.com/technique/T1008), [T1016](https://intel.threadlinqs.com/technique/T1016), [T1018](https://intel.threadlinqs.com/technique/T1018), [T1020](https://intel.threadlinqs.com/technique/T1020), [T1021](https://intel.threadlinqs.com/technique/T1021), [T1021.005](https://intel.threadlinqs.com/technique/T1021.005), [T1027](https://intel.threadlinqs.com/technique/T1027), [T1027.002](https://intel.threadlinqs.com/technique/T1027.002), [T1033](https://intel.threadlinqs.com/technique/T1033), [T1036](https://intel.threadlinqs.com/technique/T1036), [T1036.005](https://intel.threadlinqs.com/technique/T1036.005), [T1040](https://intel.threadlinqs.com/technique/T1040), [T1041](https://intel.threadlinqs.com/technique/T1041), [T1046](https://intel.threadlinqs.com/technique/T1046), [T1047](https://intel.threadlinqs.com/technique/T1047), [T1048](https://intel.threadlinqs.com/technique/T1048), [T1053.003](https://intel.threadlinqs.com/technique/T1053.003), [T1053.005](https://intel.threadlinqs.com/technique/T1053.005), [T1055](https://intel.threadlinqs.com/technique/T1055), [T1056.002](https://intel.threadlinqs.com/technique/T1056.002), [T1059](https://intel.threadlinqs.com/technique/T1059), [T1059.004](https://intel.threadlinqs.com/technique/T1059.004), [T1059.007](https://intel.threadlinqs.com/technique/T1059.007), [T1068](https://intel.threadlinqs.com/technique/T1068), [T1069](https://intel.threadlinqs.com/technique/T1069), [T1070](https://intel.threadlinqs.com/technique/T1070), T1070.008, [T1071](https://intel.threadlinqs.com/technique/T1071), [T1071.001](https://intel.threadlinqs.com/technique/T1071.001), [T1071.004](https://intel.threadlinqs.com/technique/T1071.004), [T1074](https://intel.threadlinqs.com/technique/T1074), [T1078](https://intel.threadlinqs.com/technique/T1078), [T1078.001](https://intel.threadlinqs.com/technique/T1078.001), [T1078.004](https://intel.threadlinqs.com/technique/T1078.004), [T1080](https://intel.threadlinqs.com/technique/T1080), [T1082](https://intel.threadlinqs.com/technique/T1082), [T1083](https://intel.threadlinqs.com/technique/T1083), [T1087](https://intel.threadlinqs.com/technique/T1087), [T1087.004](https://intel.threadlinqs.com/technique/T1087.004), [T1090](https://intel.threadlinqs.com/technique/T1090), [T1090.002](https://intel.threadlinqs.com/technique/T1090.002), [T1095](https://intel.threadlinqs.com/technique/T1095), [T1098](https://intel.threadlinqs.com/technique/T1098), [T1098.001](https://intel.threadlinqs.com/technique/T1098.001), [T1098.005](https://intel.threadlinqs.com/technique/T1098.005), [T1102](https://intel.threadlinqs.com/technique/T1102), [T1105](https://intel.threadlinqs.com/technique/T1105), [T1111](https://intel.threadlinqs.com/technique/T1111), [T1114.002](https://intel.threadlinqs.com/technique/T1114.002), [T1119](https://intel.threadlinqs.com/technique/T1119), [T1133](https://intel.threadlinqs.com/technique/T1133), [T1136](https://intel.threadlinqs.com/technique/T1136), [T1140](https://intel.threadlinqs.com/technique/T1140), [T1176](https://intel.threadlinqs.com/technique/T1176), [T1185](https://intel.threadlinqs.com/technique/T1185), [T1187](https://intel.threadlinqs.com/technique/T1187), [T1189](https://intel.threadlinqs.com/technique/T1189), [T1190](https://intel.threadlinqs.com/technique/T1190), [T1195](https://intel.threadlinqs.com/technique/T1195), [T1195.001](https://intel.threadlinqs.com/technique/T1195.001), [T1199](https://intel.threadlinqs.com/technique/T1199), [T1203](https://intel.threadlinqs.com/technique/T1203), [T1204](https://intel.threadlinqs.com/technique/T1204), [T1204.001](https://intel.threadlinqs.com/technique/T1204.001), [T1204.002](https://intel.threadlinqs.com/technique/T1204.002), [T1204.004](https://intel.threadlinqs.com/technique/T1204.004), [T1205](https://intel.threadlinqs.com/technique/T1205), [T1210](https://intel.threadlinqs.com/technique/T1210), [T1211](https://intel.threadlinqs.com/technique/T1211), [T1212](https://intel.threadlinqs.com/technique/T1212), [T1213](https://intel.threadlinqs.com/technique/T1213), [T1213.002](https://intel.threadlinqs.com/technique/T1213.002), [T1218](https://intel.threadlinqs.com/technique/T1218), [T1222.002](https://intel.threadlinqs.com/technique/T1222.002), [T1480](https://intel.threadlinqs.com/technique/T1480), [T1485](https://intel.threadlinqs.com/technique/T1485), [T1486](https://intel.threadlinqs.com/technique/T1486), [T1489](https://intel.threadlinqs.com/technique/T1489), [T1496](https://intel.threadlinqs.com/technique/T1496), [T1497](https://intel.threadlinqs.com/technique/T1497), [T1497.001](https://intel.threadlinqs.com/technique/T1497.001), T1499.001, [T1499.002](https://intel.threadlinqs.com/technique/T1499.002), [T1499.004](https://intel.threadlinqs.com/technique/T1499.004), [T1505.003](https://intel.threadlinqs.com/technique/T1505.003), [T1518](https://intel.threadlinqs.com/technique/T1518), [T1526](https://intel.threadlinqs.com/technique/T1526), [T1528](https://intel.threadlinqs.com/technique/T1528), [T1529](https://intel.threadlinqs.com/technique/T1529), [T1530](https://intel.threadlinqs.com/technique/T1530), [T1534](https://intel.threadlinqs.com/technique/T1534), [T1537](https://intel.threadlinqs.com/technique/T1537), [T1538](https://intel.threadlinqs.com/technique/T1538), [T1539](https://intel.threadlinqs.com/technique/T1539), [T1543](https://intel.threadlinqs.com/technique/T1543), [T1543.001](https://intel.threadlinqs.com/technique/T1543.001), [T1546](https://intel.threadlinqs.com/technique/T1546), [T1547](https://intel.threadlinqs.com/technique/T1547), [T1547.001](https://intel.threadlinqs.com/technique/T1547.001), [T1548](https://intel.threadlinqs.com/technique/T1548), T1548.006, [T1550](https://intel.threadlinqs.com/technique/T1550), [T1550.001](https://intel.threadlinqs.com/technique/T1550.001), [T1550.004](https://intel.threadlinqs.com/technique/T1550.004), [T1552](https://intel.threadlinqs.com/technique/T1552), [T1552.001](https://intel.threadlinqs.com/technique/T1552.001), [T1552.004](https://intel.threadlinqs.com/technique/T1552.004), [T1553](https://intel.threadlinqs.com/technique/T1553), [T1553.001](https://intel.threadlinqs.com/technique/T1553.001), [T1554](https://intel.threadlinqs.com/technique/T1554), [T1555](https://intel.threadlinqs.com/technique/T1555), [T1555.001](https://intel.threadlinqs.com/technique/T1555.001), [T1555.003](https://intel.threadlinqs.com/technique/T1555.003), [T1556](https://intel.threadlinqs.com/technique/T1556), [T1557](https://intel.threadlinqs.com/technique/T1557), [T1560](https://intel.threadlinqs.com/technique/T1560), [T1564](https://intel.threadlinqs.com/technique/T1564), [T1564.008](https://intel.threadlinqs.com/technique/T1564.008), [T1565.001](https://intel.threadlinqs.com/technique/T1565.001), [T1565.002](https://intel.threadlinqs.com/technique/T1565.002), [T1566](https://intel.threadlinqs.com/technique/T1566), [T1566.002](https://intel.threadlinqs.com/technique/T1566.002), [T1566.004](https://intel.threadlinqs.com/technique/T1566.004), [T1567](https://intel.threadlinqs.com/technique/T1567), [T1570](https://intel.threadlinqs.com/technique/T1570), [T1572](https://intel.threadlinqs.com/technique/T1572), [T1573](https://intel.threadlinqs.com/technique/T1573), [T1574](https://intel.threadlinqs.com/technique/T1574), [T1583](https://intel.threadlinqs.com/technique/T1583), [T1583.001](https://intel.threadlinqs.com/technique/T1583.001), [T1583.006](https://intel.threadlinqs.com/technique/T1583.006), [T1583.008](https://intel.threadlinqs.com/technique/T1583.008), [T1584](https://intel.threadlinqs.com/technique/T1584), [T1585](https://intel.threadlinqs.com/technique/T1585), [T1586](https://intel.threadlinqs.com/technique/T1586), [T1587.001](https://intel.threadlinqs.com/technique/T1587.001), [T1587.004](https://intel.threadlinqs.com/technique/T1587.004), [T1588](https://intel.threadlinqs.com/technique/T1588), [T1588.002](https://intel.threadlinqs.com/technique/T1588.002), [T1588.005](https://intel.threadlinqs.com/technique/T1588.005), [T1588.006](https://intel.threadlinqs.com/technique/T1588.006), [T1589](https://intel.threadlinqs.com/technique/T1589), [T1590](https://intel.threadlinqs.com/technique/T1590), T1590.005, [T1592.002](https://intel.threadlinqs.com/technique/T1592.002), [T1592.004](https://intel.threadlinqs.com/technique/T1592.004), [T1595.002](https://intel.threadlinqs.com/technique/T1595.002), [T1599](https://intel.threadlinqs.com/technique/T1599), T1599.001, [T1608](https://intel.threadlinqs.com/technique/T1608), [T1608.001](https://intel.threadlinqs.com/technique/T1608.001), [T1608.005](https://intel.threadlinqs.com/technique/T1608.005), [T1610](https://intel.threadlinqs.com/technique/T1610), [T1611](https://intel.threadlinqs.com/technique/T1611), [T1613](https://intel.threadlinqs.com/technique/T1613), [T1614](https://intel.threadlinqs.com/technique/T1614), [T1620](https://intel.threadlinqs.com/technique/T1620), [T1622](https://intel.threadlinqs.com/technique/T1622), [T1657](https://intel.threadlinqs.com/technique/T1657), [T1684.001](https://intel.threadlinqs.com/technique/T1684.001), [T1685](https://intel.threadlinqs.com/technique/T1685)

## Threat actors

[UNC6671](https://intel.threadlinqs.com/actor/UNC6671), [Storm-2755](https://intel.threadlinqs.com/actor/Storm-2755), [FirewallFalcon](https://intel.threadlinqs.com/actor/FirewallFalcon), [TeamPCP](https://intel.threadlinqs.com/actor/TeamPCP)

Nation-state attribution: Russia (suspected, unconfirmed)

Threat categories: ICS_SCADA, VULNERABILITY, PHISHING, MALWARE, SUPPLY_CHAIN, DATA_BREACH

## Severity breakdown

- critical: 7
- high: 10
- medium: 0
- low: 0

## Indicator & detection coverage

Counts only; indicator values require Red and above, detection rule text requires Blue and above.

- Indicators of compromise: 436 (network 116, file 88, entity 72, infrastructure 46, package 35, tool 33, behavioral 28, malware 14, technique 4)
- New detection rules: 162 (100% of the day’s threats covered)

## More editions

- Previous: [2026-08-06](https://intel.threadlinqs.com/debrief/2026-08-06)
- Next: [2026-08-09](https://intel.threadlinqs.com/debrief/2026-08-09)
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Canonical: https://intel.threadlinqs.com/debrief/2026-08-07