• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

U.S. CISA adds CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities catalog

 | 

U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

 | 

Sophos fixed two critical Sophos Firewall vulnerabilities

 | 

French Authorities confirm XSS.is admin arrested in Ukraine

 | 

Microsoft linked attacks on SharePoint flaws to China-nexus actors

 | 

Cisco confirms active exploitation of ISE and ISE-PIC flaws

 | 

SharePoint under fire: new ToolShell attacks target enterprises

 | 

CrushFTP zero-day actively exploited at least since July 18

 | 

Hardcoded credentials found in HPE Aruba Instant On Wi-Fi devices

 | 

MuddyWater deploys new DCHSpy variants amid Iran-Israel conflict

 | 

U.S. CISA urges to immediately patch Microsoft SharePoint flaw adding it to its Known Exploited Vulnerabilities catalog

 | 

Microsoft issues emergency patches for SharePoint zero-days exploited in "ToolShell" attacks

 | 

SharePoint zero-day CVE-2025-53770 actively exploited in the wild

 | 

Singapore warns China-linked group UNC3886 targets its critical infrastructure

 | 

U.S. CISA adds Fortinet FortiWeb flaw to its Known Exploited Vulnerabilities catalog

 | 

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 54

 | 

Security Affairs newsletter Round 533 by Pierluigi Paganini – INTERNATIONAL EDITION

 | 

Radiology Associates of Richmond data breach impacts 1.4 million people

 | 

Fortinet FortiWeb flaw CVE-2025-25257 exploited hours after PoC release

 | 

Authorities released free decryptor for Phobos and 8base ransomware

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Hacking
  • Security
  • Microsoft confirms breach in SolarWinds hack, but denies its clients were affected

Microsoft confirms breach in SolarWinds hack, but denies its clients were affected

Pierluigi Paganini December 18, 2020

Microsoft confirms that it was also breached in the SolarWinds supply chain hack, but excluded that the attack impacted its customers.

Microsoft has confirmed that it was one of the companies breached in the recent SolarWinds supply chain attack, but the IT giant denied that the nation-state actors compromised its software supply-chain to infect its customers.

Last week, Russia-linked hackers breached SolarWinds, the attackers had used a trojanized SolarWinds Orion business software updates to distribute the backdoor tracked as SUNBURST (aka Solarigate (Microsoft)).

SolarWinds attacks MS

The company notified roughly 33,000 Orion customers of the incident, but it argued that less than 18,000” customers may have used the backboard version of its products.

According to a report published by Reuters agency citing anonymous sources familiar with the investigation, Microsoft also compromised in the SolarWinds supply–chain attack and the hackers were able to compromise its software to distribute malware to its clients.

“As with networking management software by SolarWinds, Microsoft’s own products were then used to further the attacks on others, the people said.” reported the Reuters agency.

“It was not immediately clear how many Microsoft users were affected by the tainted products.”

Basically, the report states that Microsoft itself was the victim of a supply chain attack, a circumstance that the company denied.

Microsoft issued the following statement in response to the reports published by the media.

“Like other SolarWinds customers, we have been actively looking for indicators of this actor and can confirm that we detected malicious SolarWinds binaries in our environment, which we isolated and removed. We have not found evidence of access to production services or customer data. Our investigations, which are ongoing, have found absolutely no indications that our systems were used to attack others.”

Frank Shaw, the corporate vice president of communications at Microsoft, confirmed that its company detected multiple malicious SolarWinds binaries in its environment, but excluded that that the company’ clients were impacted.

pic.twitter.com/2GBfCTRSQx

— Frank X. Shaw (@fxshaw) December 18, 2020

The Cybersecurity and Infrastructure Security Agency (CISA) published an alert to warn of compromises of U.S. government agencies, critical infrastructure entities, and private sector organizations by an advanced persistent threat (APT) actor beginning in at least March 2020. According to CISA, the attack was carried out by an APT group that demonstrated patience, operational security, and complex tradecraft in these intrusions.

CISA experts pointed out that removing this threat actor from compromised environments will be highly complex and challenging for organizations.

“CISA has evidence of additional initial access vectors, other than the SolarWinds Orion platform; however, these are still being investigated.” reads the alert.

Microsoft, FireEye, and GoDaddy have partnered to create a kill switch for the Sunburst backdoor that was employed in the recent SolarWinds hack.

[adrotate banner=”9″][adrotate banner=”12″]

Pierluigi Paganini

(SecurityAffairs – hacking, SolarWinds)

[adrotate banner=”5″]

[adrotate banner=”13″]


facebook linkedin twitter

Hacking hacking news information security news IT Information Security malware Microsoft Pierluigi Paganini Security Affairs Security News SolarWinds supply chain attack

you might also like

Pierluigi Paganini July 24, 2025
U.S. CISA adds CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities catalog
Read more
Pierluigi Paganini July 23, 2025
U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    U.S. CISA adds CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities catalog

    Hacking / July 24, 2025

    U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

    Hacking / July 23, 2025

    Sophos fixed two critical Sophos Firewall vulnerabilities

    Security / July 23, 2025

    French Authorities confirm XSS.is admin arrested in Ukraine

    Cyber Crime / July 23, 2025

    Microsoft linked attacks on SharePoint flaws to China-nexus actors

    APT / July 23, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT