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Webinar: How malicious OAuth apps can lead to Google Workspace breaches
BleepingComputer webinar will dissect two Google Workspace breaches caused by malicious OAuth apps and social engineering, hosted September 23 with Material Security.
On September 23, 2026, BleepingComputer will host a webinar with Material Security examining two real attacks that used malicious OAuth applications and social engineering to breach Google Workspace environments. Rather than stealing credentials, attackers persuaded users to authorize malicious apps, gaining access to data through the granted permissions. The session covers first-hour response decisions and which security controls provide the greatest value for fast-growing organizations.
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Microsoft Excel KB5002914 update breaks copy and paste for some users
Microsoft's September Patch Tuesday update KB5002914 breaks copy-and-paste and formula dragging in Excel 2016 through 2024; uninstalling the update restores functionality.
Users on Reddit and Microsoft Q&A report that the KB5002914 security update shipped in the September 2026 Patch Tuesday breaks copy-and-paste, autofill, and formula dragging in Excel. The problem spans Office 2016 through 2024 across MSI and Click-to-Run installations, including Office LTSC Standard 2021, with some teams blocked after widespread patching. Uninstalling KB5002914 or downgrading the Office build restores functionality, though replacing the excel.exe binary is not recommended. BleepingComputer could not reproduce the issue on Excel 2019 Version 2508 Build 19127.20302 and contacted Microsoft for comment.
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Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks
Cisco confirmed active exploitation of CVE-2026-20079, a CVSS 10.0 authentication bypass enabling unauthenticated root command execution in Secure FMC; CISA added it to KEV.
Cisco confirmed in August 2026 that CVE-2026-20079 (CVSS 10.0), an unauthenticated authentication bypass in Secure Firewall Management Center, is being actively exploited, allowing remote attackers to execute scripts and commands as root via crafted HTTP requests to the web interface. CISA added the flaw to its Known Exploited Vulnerabilities catalog, ordering federal civilian agencies to patch by September 12, 2026. Shared IOCs, identical hot fixes, and a July 23 log entry suggest CVE-2026-20079 was used alongside the separately exploited static-credential flaw CVE-2026-20316 in the same attacks. Cisco released patches and cloud fixes, warns hot fixes do not remediate already-compromised devices, and says there are no workarounds.
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DoppelCart fraud network uses 119,000 fake shops to steal credit cards
DoppelCart, the largest documented fake-shop network, runs 119,000 domains impersonating 44,182 brands to steal payment card details via WebSocket-connected checkout pages.
German cybersecurity startup Nebty discovered DoppelCart, a network of more than 119,000 fake e-commerce domains, mostly in the .SHOP TLD, that harvest payment card details through fraudulent checkout pages. Over 105,000 shops remain active, impersonating 44,182 brands with discounts of up to 65%, and 96% of confirmed shops share identical build files resolving to 27 commerce backends. Checkout code exfiltrates card numbers, expiration dates, CVVs, cardholder names, contact details, and even bank one-time codes to attacker C2 over WebSockets in real time, potentially bypassing bank security controls. The network surpasses BogusBazaar, the previously largest documented fake-shop cluster with 75,000 sites and an estimated 850,000 fraudulent transactions.
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Webinar: The forgotten Google Workspace access that can lead to a breach
BleepingComputer and Material Security will host a September 23, 2026 webinar on breaches caused by forgotten third-party Google Workspace integrations.
BleepingComputer announced a live webinar on September 23, 2026, titled 'Breach autopsy: How fast-growing companies are breached through Google Workspace' in partnership with Material Security. Speakers include Rajan Kapoor, VP of Security at Material Security, and Rick Fitzgerald, President of Fireside Consulting LLC. The session will examine real documented Google Workspace breaches involving overly permissive third-party integrations, social engineering entry paths, first-hours breach response decisions, and high-value security controls for lean security teams.
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CVE-2026-34908: Ubiquiti Networks UniFi OS Server access control ...
CVE-2026-34908, a CVSS 10.0 access-control bypass in Ubiquiti UniFi OS, was added to CISA's KEV catalog amid reported active exploitation.
CISA added CVE-2026-34908 to the Known Exploited Vulnerabilities catalog on June 23, 2026, with remediation due June 26 under BOD 26-04 guidance. The CVSS 10.0 improper access control flaw (CWE-284) in Ubiquiti UniFi OS allows unauthorized system changes without authentication. Multiple news reports referenced by the page describe the max-severity UniFi flaws being exploited in attacks, and an official patch is available.
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Trezor data breach impact now reaches 81,000 customers
Trezor's ShipMonk breach now affects 81,000 customers, adding 67,000 US customers after Metabase exploitation by ShinyHunters-linked attackers.
Trezor expanded its August 13 breach disclosure, saying the incident at shipping partner ShipMonk now affects 81,000 customers, with 67,000 additional US customers who ordered between November 2019 and August 2021 exposed. Attackers exploited a Metabase SQL injection zero-day to access ShipMonk's systems, exposing names, emails, phone numbers, shipping addresses, and order numbers; ShipMonk reportedly received extortion emails from the ShinyHunters gang. Trezor's own systems and devices were not compromised, and affected users are warned of phishing and scams. The broader Metabase campaign also hit Tally and Framework.
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