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Five Challenges to Building an Isomorphic JavaScript Library

DoorDash Engineering

Building software today can require working on the server side and client side, but building isomorphic JavaScript libraries can be a challenge if unaware of some particular issues, which can involve picking the right dependencies and selectively importing them among others. or web browser. or web browser. and one for the browser.

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The malware threat landscape: NodeStealer, DuckTail, and more

Engineering at Meta

Novel NodeStealer malware: An in-depth analysis In late January 2023, our security team identified a new malware NodeStealer that targeted internet browsers on Windows with a goal of stealing cookies and saved usernames and passwords to ultimately compromise Facebook, Gmail, and Outlook accounts. environment. For context, Node.js

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How to measure the performance of a website

Kentik

This includes all HTML, style sheets, cookies, any javascript that has to execute, etc. Some of the metrics include but are not limited to: Response size : This is the volume of data your browser is trying to download to display a page. And, of course, whether or not any of this is cached locally in your browser.

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Anatomy of a Blackhat SEO spam campaign (with a twist)

CATO Networks

We can see that it contains a piece of Javascript that is executed every time a web browser hits on an infected page, downloading another Javascript code that is hosted on the attacker’s server. Interestingly, at this point in time the script refers to a HTML page and not Javascript code.

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Cato Research Decrypts the News Behind February Security Events

CATO Networks

With a spoofed WLAN, the attackers can see the traffic traversing their sites as well as modify the HTML and the JavaScript contained in HTTP requests Most Internet traffic from small to medium enterprises (SMEs) mobile users is encrypted either by the companys VPN or by HTTPS.

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Speed Matters, But It Isn’t Everything

Indeed Engineering

Performance metrics We measured loading speed using two key metrics: FirstContentfulPaint when the user sees the first content of the page DomContentLoadedEventEnd when the page becomes interactive, as measured by the moment where all critical CSS and JavaScript have been parsed and executed We chose a weighted average instead of a single metric.

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Threat Intelligence Feeds and Endpoint Protection Systems Fail to Detect 24 Malicious Chrome Extensions

CATO Networks

Some of the code (JavaScript) was obfuscated, hiding its C&C targets, a common trick used by attackers. Permissions to use cookies, manipulate network traffic or access all tabs and sites require more in-depth investigation. Figure 4: Obfuscated JS code in the Postman copycat extension.

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