Security book
“WARNING: Contains information which could make your account secure!”
About this item
The Security book, titled Account Security, is a book that contains information on how you can protect your account and bank account through: using a Jagex Account, which has built-in two-factor authentication; setting up two-factor authentication on your email address; your password: - how it is built up (use both letters and numbers); - how memorable it is to you; - how hard it is for others to guess; - the way you look after it (don't write it down nor save it in a text file, as others may find it; don't share it with ANYONE); setting a Bank PIN; not leaving your account logged in while you are away from the device; overcoming the challenges of the Stronghold of Security. The Security book can be obtained for free from the Security Guard in Port Sarim jail. It can also be found in a bookcase in a player-owned house. The book can be purchased from several general stores and from Trader Stan's Trading Post.
From Security book on the Old School RuneScape Wiki, used under CC BY-NC-SA 3.0.
- Buy limit
- 15 per 4h
- High alch
- 1
- Shop value
- 2
- Traded last hour
- 8
Its high alch value of 1 does not cover the 153 nature rune it would burn, so alching is a loss before the item itself is counted.
One unit, right now
- Buy at (instant-sell)traded 2h ago
- 173
- Sell at (instant-buy)traded 3h ago
- 184
- Spread
- 11
- Tax on the sale
- −3
- Margin per unit
- 8
Breakeven sell price is 177 — a spread of 2.31% just to clear the tax.
Your 1.00M
- Buy limit per 4 hours
- 15
- Units you can fund
- 15
- Capital required
- 2,595
- Profit per window
- 120
Price is stale, governed by the sell side at 3h. You can get in faster than you can get out.
Prices refreshed now.
Against its own history last 90 days · 79 daily bars
wider than 47% of the last 79 days
62% of the way up its 90-day range
Measured with medians rather than averages, because one spike — an update, a streamer, a brief squeeze — drags an average around for weeks afterwards and makes everything since look ordinary. Worth noting here: this item typically moves 22.19% in a day, which is more than the 6.36% you would be capturing — so holding it overnight risks more than the flip makes.