Another one bites the apple!

Hello, world! I’m Ramses, responsible for security assessment at LINE. My work is to try to hack LINE services and find a way to enhance its security. During my personal time, I find and report security vulnerabilities in third party services also. This is my way of contributing to building a more secure world. Among hackers, this is called a bug hunt. Hackers participate in bug hunting to win a bounty, build their reputation as a hacker or just because they enjoy hacking itself. Many hackers target Apple products for bug hunting, and I’m writing this post to share my journey of bug hunting with Apple products.

First experience and takeaways of Google I/O 2019

Google I/O is an annual developer conference held by Google that brings together developers from around the globe for talks, hands-on learning with Google experts, and a first look at Google’s latest developer products. As an Android developer, it’s a dream to attend this conference, or you could say, festival. I am so honored and …

LINE Things automatic communication

The long-awaited “Automatic Communication” functionality has finally been released. This new feature will allow Bluetooth LE communication even if the LINE Things app is not launched. LINE Things-compatible IoT devices will be able to work closely with a LINE bot in an instant with this feature.

LINE DEVELOPER DAY 2018 Recap

LINE has been hosting an annual technology conference, a.k.a. LINE Developer Day, in Tokyo since 2015, and this event has been evolving in size and quality ever since. In November 2018, LINE DEVELOPER DAY 2018 was held at Happoen Garden in Tokyo with the participation of more than 1,000 developers. As I was providing support for this conference from Korea, I attended the event and I’d like to share a few snapshots of LINE DEVELOPER DAY 2018.

Performance impact of MySQL performance-schema-instruments

Hi, there! I’m Otsuka (tom__bo), mainly responsible for MySQL operations and development of various DB administration and verification tools. In this post, I am going to write about my experiment on MySQL performance when its performance consumers, namely the performance_schema database and the innodb_metrics table of the information_schema database, are up and running.  I got to learn about the performance_schema and the INFORMATION_SCHEMA.INNODB_METRICS from a book …

Make your GitHub contributions calendar greener (featuring Armeria Sprint)!

Hi, there! Do any of you need to make lots and lots of commits to turn your GitHub contribution calendar into a pastureland? If that’s the case, I proudly present Armeria Sprint! Let me give you some ideas on what Armeria Sprint is and share reviews from our enthusiastic participants. You’ve probably come across a sprint at technical …

How AIR ARMOR checks iOS Code Signing

AIR ARMOR is a security solution of AIR; AIR is a component of the LINE GAME PLATFORM. You can refer to Seunghoon’s posting on AIR GO and APK Signing for information on the APK signature scheme. For this posting, I’ll explain about iOS code signing, one of Apple’s security mechanism. Code signing is to verify the integrity of the software code …

Introducing LINE Games analytics environment

Big data and data analysis have long been popular key words in the IT world. Nowadays, they are no longer a choice but a necessity. Everyone is piling up and digging up data to find a meaning from big data. To achieve success in this “fact-finding” process, we need an appropriate analytics environment. Today I’d like to share with you how and what LINE has built for game analysis.

Announcing the LINE API Experts for 2019

LINE API Expert is a program to recognize and award the title of “LINE API Expert” to competent engineers who have a deep understanding of the APIs provided by LINE and are influential in the developer community. LINE API experts will be offered an array of benefits as well as LINE’s support for their activities. …

VueConf TO 2018 Recap

VueConf TO is North America’s biggest Vue conference with attendees from all around the world, including Vue.js core team members, Nuxt.js, Vuetify.js and main library authors, along with expert speakers from the community. Vue is an open-source JavaScript framework for building user interfaces and single-page applications, which lower the barrier and complexity of frontend development. It’s one of the most popular framework nowadays …