Opening word: Welcome to Internet

In good and bad, Internet has been a dominant factor shaping the globalization and shrinking our planet. Internet allows us to connect to anybody in a blink of an eye. Internet allows us to have all the information in the world in our fingertips, no matter who wrote it, where and when. The advancements in communications have brought the unimaginable pace of development and research.

What makes Internet to be what it is, global and ever-present? When you plug your device to Internet, you make a social contract saying you accept any traffic coming over the wire, even if you don’t like it. Internet itself doesn’t discriminate. No evil bit exists in a network packet telling you maybe you should not open it, since there are no universal moral standards for evil. What might be a horrendous hack of a killing well-intentioned startup for one might be a small victory against the oppressors of a thief nation for the other.

Thus, in its heart, Internet is a lawless cyberanarchy. The hostile actors are foreign and often state sponsored - there is no legal remedy against someone who is not criminal by their own standards. Knowing the IP address of an adversary doesn’t help if you cannot bring justice on the opposite side of the planet. There is no world police who would hear your case.

Internet has always been this way. However, today’s threats are no longer just fiction in thrillers. The landscape of Internet security changed greatly during 2010s. As more business and personal life moves online, we have become dependent on Internet. We can receive more damage over Internet: there is more to lose in privacy, financial, business, industrial and political aspects. Those benefiting of exploiting weaknesses know this as well.

Something being greater than a justice system of any nation doesn’t leave options for post-mortem appeals. Instead, one must recognize the environment where they are working and cope against the threats. One needs to resist them and one needs survive them on their own. Threat models and defences are well known. Building a hack-resistant system is possible and in the reach of anybody, as this guide shows.

However, hack-resistance does not happen with catch phrases like “our privacy policy states we follow modern security practices” or “our data is encrypted”. These kind of opaque statements lack factual content - they don’t tell which practices are followed and how your data is encrypted. Service users or peers cannot find security there. Alas, the history shows that every compromised service had statements like these.

To create a safer Internet we need a build a culture of security. The motivation towards this must come from the developers, operators and decision makers themselves. The first step is taking responsibility of what is at the stake and recognizing security is not something slapped on the top afterwards. Security is something crossing the business horizontally and weaved into it. The future lies in finding transparent, verifiable, ways to guarantee the security and educating peers and users about this. This guide aims to be an initiative to this direction.

Mission statement

Building responsible security culture yields to healthy Internet society. Every day more and more of our lives is transformed to online. People who create and nurture online services are acting deputies in this society. The motivation towards transparent trust and safety must start with these people and resonate through their work.

Security should be open and free: Nobody should need to pay to the ensure the state of the art security of their work. A willing person should be able to learn information and access tools needed to build safe Internet services for free.

Security should be transparent: There should be an effective way or approximation to say whether one can trust to the safety of a service. The intent of security should be verifiable facts, not just in claim,


There exist similar projects with partially overlapping scopes. This project is geared towards Internet services operators and business decision makers following the principles of openness on which Internet itself was built. The guide aims to be

  • Holistic: The guide tells how to guarantee the security of the project as a whole. This includes organization practices, tools and devices, infrastructure and e.g. is not limited to one business function like software development practices.
  • Grassroots effort: from bottom to up, from individuals to organizational processes. The advices in this guide are based on real life experiences. They are concrete, battle tested and addressing true concerns.
  • Open: The content is open, under very permissive Creative Commons license. It is hosted on Github making editing open-ended for everybody.
  • Lightweight: Everybody from a single person startup should be able to implement the security advices of the guide.

Prior art

OPSEC - Operations Security Guide greatly owes to earlier work in the field of information security. There exist few projects with partially overlapping scopes and the guide makes its best to cross reference them when possible.