MACE: The Integrated Ad & Malware Blocker
Definition & Principle
MACE is PIA VPN’s proprietary DNS-level filtering system. It works by intercepting DNS queries—the requests your device makes to translate a domain name like ‘ads.example.com’ into an IP address. MACE maintains a constantly updated blocklist of domains known to serve advertisements, trackers, and malware. When a matching query is detected, the system blocks it at the DNS level, preventing the connection from being established. This happens before any data is downloaded, which means the ad is never loaded, the tracker never pings, and the malware never reaches your device. It’s a firewall function baked directly into the VPN client.
Comparative Analysis
Typical alternatives are browser extensions (uBlock Origin, AdBlock Plus) or system-wide ad blockers (Pi-hole). Browser extensions are effective but limited to that specific browser; background apps and other software can still communicate with tracking domains. A Pi-hole is powerful but requires technical setup and maintenance of a separate hardware device. MACE’s integration is its key differential. Because it operates at the VPN level, it filters all traffic from every application on the device—every browser, every game, every news app. There’s no additional software to install or configure. The trade-off is control: MACE is an on/off toggle, whereas a Pi-hole offers granular allow/deny lists.
Practical Application for Australians
The value for Australian users is twofold: privacy and performance. Media websites in Australia, particularly news outlets, are notoriously laden with trackers and heavy ad scripts. Loading the Sydney Morning Herald or news.com.au without an ad blocker is a performance and privacy ordeal. MACE strips this out, leading to noticeably faster page loads and reduced data consumption—a tangible benefit on mobile data plans. More critically, it eliminates a major vector for malware and scams. As noted by the Australian Cyber Security Centre (ACSC), malicious advertising (malvertising) is a persistent threat. By blocking requests to known malicious domains at the network level, MACE provides a layer of pre-emptive security that complements traditional antivirus software.
I think of it as a silent hygiene layer. You might not notice it working until you turn it off and the digital noise rushes back in.
Technical Limitations & Considerations
MACE is not infallible. It relies on the accuracy and timeliness of its blocklist. A brand-new tracking domain might evade it for a short period. It also cannot block ads served from the same domain as the primary content (first-party ads). For the vast majority of users, its efficacy is above 90%. For researchers studying web traffic, it’s important to note that MACE will alter the network profile of the device. You may need to disable it when conducting certain types of network analysis to ensure you are observing raw traffic flows.