Research reveals possible privacy gaps in Apple Intelligence’s data handling

LAS VEGAS — One of the big worries during the generative AI boom is where exactly data is traveling when users enter queries or commands into the system. According to new research, those worries may also extend to one of the world’s most popular consumer technology companies. 

Apple’s artificial intelligence ecosystem, known as Apple Intelligence, routinely transmits sensitive user data to company servers beyond what its privacy policies indicate, according to Israeli cybersecurity firm Lumia Security.  

The research, presented Wednesday at the 2025 Black Hat USA conference, detailed how Apple’s Siri assistant sends the content of dictated messages and commands, including WhatsApp communications, to Apple servers even when such transmission isn’t necessary to complete user requests. The data flows occur outside Apple’s heavily promoted Private Cloud Compute system, which the company markets as providing enhanced privacy protections.

The research comes as Apple has long positioned itself as a privacy-focused company, building marketing campaigns around the company’s concentration on privacy for individual users

Which Siri is which? 

The investigation, led by Lumia senior security researcher Yoav Magid, concentrated on several different ways users can interact with Siri. While Siri has been around since 2010, the company announced it was part of Apple Intelligence in 2024. 

Magid showed that when given a prompt, Siri automatically scans users’ devices for installed applications related to voice queries and transmits this information to Apple servers. When a user asks about weather, for example, Siri identifies and reports all weather-related apps on the device. Additionally, location data accompanies every Siri request regardless of whether location information is relevant to the query. 

Further research showed that audio playback metadata, including the names of songs, podcasts, or videos being played, is sent to Apple servers without explicit user visibility into these data flows.

Perhaps most significantly, the research found that messages dictated through Siri to platforms like WhatsApp are transmitted to Apple servers, raising questions about the end-to-end encryption functionality built into WhatsApp. Magid found these messages are sent through Apple’s Private Cloud Compute infrastructure, which is specifically designed to provide additional privacy protections for sensitive AI processing tasks.

CAPTION: A packet decoded by Lumia Security that shows WhatsApp messages sent through Siri are transmitted to Apple servers, potentially breaking end-to-end encryption. (Lumia Security)

The practice raises questions about end-to-end encryption claims made by messaging platforms, since message content leaves the device through Apple’s systems before reaching intended recipients.

Testing revealed that message transmission to Apple servers continues even when users explicitly disable settings that allow Siri to “learn” from specific applications or network communication to Apple servers is blocked. 

“I’m not quite sure why this communication is necessary,” Magid said. 

In the course of conducting the research, he found that Apple sometimes processes the data depending on whether a request is processed through traditional Siri infrastructure or the newer Apple Intelligence system. 

Similar queries can trigger different data- handling practices with different privacy implications. For example, asking “What is the weather today?” sends data to Siri servers under one privacy policy, while “Ask ChatGPT what is the weather today?” routes the request through Apple Intelligence’s Private Cloud Compute under different terms.

“Two similar questions, two different traffic flows, two different privacy policies,” Magid noted in a blog

This dual system means users have no way to predict which privacy framework applies to their interactions, creating uncertainty about how their data will be handled.

Apple’s response and disputed claims

Apple acknowledged some aspects of the research findings after Lumia reported the issues in February. Initially, Magid said Apple indicated it would work toward fixes for identified problems.

However, by July, Magid said that Apple shifted its position, telling researchers that the message transmission behavior was not a privacy issue related to Apple Intelligence, but rather stemmed from third-party services’ use of SiriKit, Apple’s extension system for integrating external apps with Siri.

The company maintained that Siri’s servers operate separately from Apple’s Private Cloud Compute system, though this distinction is not clearly communicated to users.

Apple disputed characterizations that the data collection represented privacy violations, arguing that existing policies adequately disclose the practices. 

The company told CyberScoop that it “respectfully disagrees” with the research, with an Apple spokesperson pointing back to the functionality of SiriKit and the privacy policies regarding Siri. 

The research highlights how traditional privacy frameworks may be inadequate for governing AI systems that require extensive data analysis to function effectively. The complexity of modern AI systems makes it difficult for users to understand when their data is being transmitted to external servers, processed locally, or shared with third parties.

For enterprise users, the findings could raise compliance concerns when sensitive corporate information potentially leaves organizational networks through employee devices running Apple Intelligence. 

“AI capabilities are now all around us. Any typical app these days incorporates AI, whether it’s Grammarly, Canva or Salesforce,” Magid wrote in the blog. “Knowing when a feature is powered by AI or not, is not really trivial anymore.”

The post Research reveals possible privacy gaps in Apple Intelligence’s data handling appeared first on CyberScoop.

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CISA, Microsoft warn organizations of high-severity Microsoft Exchange vulnerability

LAS VEGAS — Federal cyber authorities issued an alert Wednesday evening about a high-severity vulnerability affecting on-premises Microsoft Exchange servers shortly after a researcher presented findings of the defect at Black Hat. 

Microsoft also issued an advisory about the vulnerability — CVE-2025-53786 — and said it’s not aware of exploitation in the wild. 

While the public disclosure and advisories about the defect came late in the day amid one of the largest cybersecurity conferences, Tom Gallagher, VP of engineering at Microsoft Security Response Center, told CyberScoop the timing was coordinated for release following Mollema’s presentation.

Gallagher stressed that exploitation requires an attacker to achieve administrative access to an on-premises Exchange server in a hybrid environment. 

Attackers could escalate privileges in an organization’s connected cloud environment because on-premises and cloud-based versions of Exchange share the same permissions in hybrid configurations, Microsoft said in its advisory. The vulnerability affects Entra ID, Microsoft’s identity and access management service, potentially exposing a path for attackers to move from a compromised on-premises Exchange server to a connected cloud-based counterpart.

Authorities are actively monitoring and assessing the scope and impact of the vulnerability, Chris Butera, acting executive assistant director at the Cybersecurity and Infrastructure Security Agency, said in a statement. 

Microsoft said it already addressed the vulnerability in April when it introduced changes to improve the security of Exchange Server hybrid deployments. The company and CISA urged organizations to apply Microsoft’s April 2025 Exchange Server hot fix updates to on-premises Exchange servers, implement configuration changes and clear certificates from the shared service principals.

Starting later this month, Microsoft said it will temporarily block Exchange Web Services traffic using the shared service principal. That block will be permanent by the end of October, the company said.

The move is part of Microsoft’s strategy to accelerate and eventually force customers to adopt its dedicated Exchange hybrid app. “Even though adoption of server versions that support dedicated hybrid app has been good, the number of customers who have created the dedicated app remains very low,” Microsoft said in a blog post

CISA also advised organizations to disconnect any internet-exposed and end-of-life versions of Exchange Server and SharePoint Server.

The coordinated disclosure of the vulnerability comes less than three weeks after security researchers across the industry sounded the alarm about a mass attack spree linked to a critical zero-day vulnerability affecting on-premises Microsoft SharePoint servers. More than 400 organizations were impacted by those attacks, including multiple government agencies, including the Departments of Energy, Homeland Security and Health and Human Services.

The post CISA, Microsoft warn organizations of high-severity Microsoft Exchange vulnerability appeared first on CyberScoop.

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Microsoft Discloses Exchange Server Flaw Enabling Silent Cloud Access in Hybrid Setups

Microsoft has released an advisory for a high-severity security flaw affecting on-premise versions of Exchange Server that could allow an attacker to gain elevated privileges under certain conditions.
The vulnerability, tracked as CVE-2025-53786, carries a CVSS score of 8.0. Dirk-jan Mollema with Outsider Security has been acknowledged for reporting the bug.
“In an Exchange hybrid deployment, an

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The AI-Powered Security Shift: What 2025 Is Teaching Us About Cloud Defense

Now that we are well into 2025, cloud attacks are evolving faster than ever and artificial intelligence (AI) is both a weapon and a shield. As AI rapidly changes how enterprises innovate, security teams are now tasked with a triple burden:

Secure AI embedded in every part of the business.
Use AI to defend faster and smarter.
Fight AI-powered threats that execute in minutes—or seconds.

Security

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Mass Internet Scanning from ASN 43350 [Guest Diary], (Thu, Aug 7th)

[This is a Guest Diary by Duncan Woosley, an ISC intern as part of the SANS.edu BACS program]

During the last three months I've had a DShield sensor online and collecting data from a deployment in AWS. This week I did some statistical analysis of the last three months of data and found surprising result. Of all the locations that scanned and attacked the DShield sensor, one location was a clear winner in terms of volume of traffic, accounting for over 65% of the total traffic sent to the sensor. To my surprise, that location was Panama!

Total DShield Sensor Traffic per Location

The top 10 locations were close to inline with common expectations, however, the traffic from Panama was greater than the total traffic from all the remaining locations combined!

Digging into the source of this anomaly, I filtered for traffic by day and found that there were massive spikes on just a few days in the last three months that accounted for most of the DShield sensor's captured volume.

Largest Single Days by volume from April 7th to July 7th

Each spike was found to be caused by traffic from a single IP each day, but the IP responsible for each spike was different. However, six of the top ten most active IPs were all from a single /24 subnet! The subnet 141.98.80.0/24 was the cause of 59.4% of total logs collected by the sensor. Moreover, nine of the top 10 IPs were from the same internet service provider (ISP) named "NForce Entertainment B.V."

Autonomous System Numbers (ASN) 43350 accounted for 71.6% of the total sensor logs! This ASN belonging to NForce Entertainment but NForce Entertainment appears to often lease out its IP space to other VPN and proxy providers like the Panama based Flyservers S.A. Flyservers is categorized as a "potentially very high fraud risk ISP" by Scamalytics and is likely the source of this activity.

Top ASNs by Total Traffic

Further research into this ISP found that the NForce Entertainment IP activity was often associated with phishing, malware, and scanning. As a Dutch ISP, they operate without strict regulatory oversight or pressure from their host nation to revoke threat actors’ use of their services.

Recommendations

Unfortunately, the solution for network defenders isn't as simple as blocking all traffic from NForce Entertainment. If your organization is in a position where no NForce Entertainment traffic is required for business, this may be an option, but the majority of organizations don’t allow sweeping IP blocking. Instead, I would recommend blocking only sensitive services and HTTP(S) endpoints that allow for logins. The following actions are recommended.

•    Flagging traffic from NForce Entertainment and particularly from ASN 43350.
•    Block access to Remote Desktop Protocol from the internet.
•    Monitor for SSH activity from ASN 43350 and configured SSH to use key based authentication.
•    Implement a Web Application Firewall (WAF) for all web applications and monitor activity originating from any sources for suspicious queries.
•    Create a WAF alert threshold for high traffic originating from a single source.

[1] https://ift.tt/T087ocX
[2] https://scamalytics.com
[3] https://owasp.org/www-community/Web_Application_Firewall
[4] https://ift.tt/oBITSkv

NOTE: ChatGTP was used for Spelling and grammar checks only
———–
Guy Bruneau IPSS Inc.
My GitHub Page
Twitter: GuyBruneau
gbruneau at isc dot sans dot edu

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

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Researchers Uncover ECScape Flaw in Amazon ECS Enabling Cross-Task Credential Theft

Cybersecurity researchers have demonstrated an “end-to-end privilege escalation chain” in Amazon Elastic Container Service (ECS) that could be exploited by an attacker to conduct lateral movement, access sensitive data, and seize control of the cloud environment.
The attack technique has been codenamed ECScape by Sweet Security researcher Naor Haziz, who presented the findings today at the

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