It said user names, email addresses and encrypted passwords were accessed.
But it insisted there was "no evidence" that payment details or stored content was accessed, changed or lost.
Evernote acts like an online personal organiser, with users able to save data such as video clips, images, web pages, notes and itineraries in an external storage system commonly known as the cloud.
In a statement on the company's website, the firm said its security team discovered and blocked "suspicious activity on [their] network that appears to have been a coordinated attempt to access secure areas of the Evernote service".
Online information storage firm Evernote has asked all users to reset their passwords, following a security breach by hackers.
Evernote insists no payment data or personal details were accessed, changed or lost It added: "While our password encryption measures are robust, we are taking additional steps to ensure that your personal data remains secure.
"This means that, in an abundance of caution, we are requiring all users to reset their Evernote account passwords."
The firm apologised "for the annoyance" caused by the breach, which it said is becoming "far more common" at other "large services".
In February, Apple revealed a "small number" of its computers had been hacked, but added there was no sign of data theft.
The hack came a week after social-networking firm Facebook said it had traced a cyber-attack back to China after some of its employee laptops were hacked.
A month ago, micro-blogging website Twitter announced it had been the victim of a security breach which compromised the accounts of 250,000 users.
The company's information security director, Bob Lord, said the attack "was not the work of amateurs".
Posts
Thank you for reaching out to us. We are happy to receive your opinion and request. If you need advert or sponsored post, We’re excited you’re considering advertising or sponsoring a post on our blog. Your support is what keeps us going. With the current trend, it’s very obvious content marketing is the way to go. Banner advertising and trying to get customers through Google Adwords may get you customers but it has been proven beyond doubt that Content Marketing has more lasting benefits.
We offer majorly two types of advertising:
1. Sponsored Posts: If you are really interested in publishing a sponsored post or a press release, video content, advertorial or any other kind of sponsored post, then you are at the right place.
WHAT KIND OF SPONSORED POSTS DO WE ACCEPT?
Generally, a sponsored post can be any of the following:
Press release
Advertorial
Video content
Article
Interview
This kind of post is usually written to promote you or your business. However, we do prefer posts that naturally flow with the site’s general content. This means we can also promote artists, songs, cosmetic products and things that you love of all products or services.
DURATION & BONUSES
Every sponsored article will remain live on the site as long as this website exists. The duration is indefinite! Again, we will share your post on our social media channels and our email subscribers too will get to read your article. You’re exposing your article to our: Twitter followers, Facebook fans and other social networks.
We will also try as much as possible to optimize your post for search engines as well.
Submission of Materials : Sponsored post should be well written in English language and all materials must be delivered via electronic medium. All sponsored posts must be delivered via electronic version, either on disk or e-mail on Microsoft Word unless otherwise noted.
PRICING
The price largely depends on if you’re writing the content or we’re to do that. But if your are writing the content, it is $60 per article.
2. Banner Advertising: We also offer banner advertising in various sizes and of course, our prices are flexible. you may choose to for the weekly rate or simply buy your desired number of impressions.
Technical Details And Pricing
Banner Size 300 X 250 pixels : Appears on the home page and below all pages on the site.
Banner Size 728 X 90 pixels: Appears on the top right Corner of the homepage and all pages on the site.
Large rectangle Banner Size (336x280) : Appears on the home page and below all pages on the site.
Small square (200x200) : Appears on the right side of the home page and all pages on the site.
Half page (300x600) : Appears on the right side of the home page and all pages on the site.
Portrait (300x1050) : Appears on the right side of the home page and all pages on the site.
Billboard (970x250) : Appears on the home page.
Submission of Materials : Banner ads can be in jpeg, jpg and gif format. All materials must be deliverd via electronic medium. All ads must be delivered via electronic version, either on disk or e-mail in the ordered pixel dimensions unless otherwise noted.
For advertising offers, send an email with your name,company, website, country and advert or sponsored post you want to appear on our website to advert @ alexa. ng
Normally, we should respond within 48 hours.